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Manganite Caland Pit, Atikokan, Hutchinson Township, Rainy River District, Ontario, Canada 6.0 x 8.0 cm. Lustrous black bladed manganite crystals covering the top of massive manganite. (Author: crosstimber)
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Manganite Ilfeld, Nordhausen, Harz Mts., Thüringia, Germany 4.8 x 5.9 cm Lustrous, black, prismatic managanite crystals with typical longitudinal striations and minor calcite. (Author: crosstimber)
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Manganite Ilfield, Harz Mts., Nordhausen, Thuringia, Germany 4.7 x 5.6 cm. (Author: crosstimber)
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Manganite from Illfeld, Harz, Germany; about 2.2 x 1.5 x 1.5 cm (Author: jaysminerals)
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Manganite on white Baryte
Ilfeld, Nordhausen, Distrito Nordhausen, Turingia/Thüringen, Alemania
10 X 10 X 9 cm (Autor: Jean Suffert) -
Manganite, baryte Ilfeld, Harz mtns., Thuringia, Germany. 8 x 5,5 cm Crystals up to 3 cm, with Carl Droop label (1890). (Author: Andreas Gerstenberg)
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Manganite, Ilfeld. Harz Mts., now cleaned. 12.5 x 10 x 8 cm. (Author: Montanpark)
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Manganite
Ilfeld, Nordhausen, Distrito Nordhausen, Turingia/Thüringen, Alemania
7 x 5.8 cm (Autor: JC) -
Manganite
Ilfeld, Nordhausen, Distrito Nordhausen, Turingia/Thüringen, Alemania
55mm x 55mm x 35mm (Autor: Don Lum) -
Manganite
Ilfeld, Nordhausen, Distrito Nordhausen, Turingia/Thüringen, Alemania
110 mm x 54 mm x 39 mm. Mass: 347 g (Autor: Carles Millan) -
Manganite
Ilfeld, Nordhausen, Distrito Nordhausen, Turingia/Thüringen, Alemania
110 mm x 54 mm x 39 mm. Mass: 347 g (Autor: Carles Millan) -
Manganite
Pozo Caland, Zona Lago Steep Rock, Atikokan, Distrito Rainy River, Ontario, Canadá
70mm x 55mm x 35 mm (Autor: Philippe Durand) -
Manganite
Ilfeld, Nordhausen, Distrito Nordhausen, Turingia/Thüringen, Alemania
69 x 37 mm (Autor: Sante Celiberti) -
Manganoan Adamite, Mapimí Durango Mexico. 4.5cm size. (Author: javmex2)
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Manganoan Calcite Madan Mine, Smolyan prov., Bulgaria 11 x 5,8 X 3,5 cm (Author: Jacquou HO)
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Manganoan Calcite. 8.8×8×2.9 cm (Author: José Miguel)
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Manganoan calcite.jpg (Author: Tracy)
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Manganocrete botrioidal BR 354 C/ BR 262, Córrego Danta, Minas Gerais, Brazil 6 x 3 x 1,2 cm) (Author: Anísio Cláudio)
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Manganocrete BR 354 C/ BR 262, Córrego Danta, Minas Gerais, Brasil 11 x 10 x 8 cm (Author: Anísio Cláudio)
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Manganoeudialyte
Cantera Poudrette, Mont Saint-Hilaire, La Vallée-du-Richelieu RCM, Montérégie, Québec, Canadá
FOV = 2.0 mm (Autor: Doug) -
Manganokhomyakovite
Cantera Poudrette, Mont Saint-Hilaire, La Vallée-du-Richelieu RCM, Montérégie, Québec, Canadá
FOV = 3mm (Autor: Doug) -
Manganoneptunite Poudrette quarry (Demix quarry; Uni-Mix quarry; Desourdy quarry; Carrière Mont Saint-Hilaire), Mont Saint-Hilaire, Rouville RCM, Montérégie, Québec, Canada FOV=2mm (Author: Doug)
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Manganoneptunite
Cantera Poudrette, Mont Saint-Hilaire, La Vallée-du-Richelieu RCM, Montérégie, Québec, Canadá
FOV = 4mm (Autor: Doug) -
Manganvesuvianite
Mina N'Chwaning II, Zona minera N'Chwaning, Kuruman, Kalahari manganese field (KMF), Provincia Septentrional del Cabo, Sudáfrica
FOV = 3.9 mm (Autor: Doug) -
Mansfieldite
Mina Torrecillas, Salar Grande, Provincia El Tamarugal, Región Tarapacá, Chile
fov 1.2 mm (Autor: Rewitzer Christian) -
Mantid, female, primitive and not yet named Main Khun, Tanai Township, Kachin State, Burma (Myanmar). 27 mm. (Author: Ru Smith)
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Many colours: sulphur from Sicily, cobalt-coloured calcite from Bou Azzer and dolomite from Congo, dioptases from Namibia and Kazakhstan (Author: Tobi)
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Many of the xtals on this piece are terminated. Hope Jordi doesn’t mind me memorializing some of my favorite adult beverages in my pictures. (Author: Matt_Zukowski)
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Many of you may know the colorful Spanish limonites. The samples from the Bayerland mine, Waldsassen, Fichtelgebirge, Bavaria look very similar. 10,5 cm sample. (Author: Andreas Gerstenberg)
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Many single crystals, classic quartz from the dolostone. (Author: vic rzonca)
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Many tiny blades. Unfortunate bruise on the far left part. (Author: Turbo)
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MAP CAPTION Map of Mapimi and district with an emphasis on some major tourist attractions, showing major and some minor roads. As you head east from the historic town of Mapimí, you’ll discover striking emblems of its past and present. To your left, the vibrant Mapimí Plaza pulses as the town’s living heart, inviting you to contemplate your journey ahead while sipping an ice cold ponche de frutas. A little further along, the haunting remains of the great Peñoles Smelter archway stand silhouetted against the sky, a stark testament to a bygone industrial era. The expedition continues east of town to the junction of Federal Highway 30 and Cam. A Ojuela, marking the tourist entrance to the legendary Ojuela mine. After securing entry — for a fee of approximately 120 pesos for adults (about 6.50 USD) and 60 pesos for children (about 3.25 USD) — the true adventure commences. The final approach is a thrilling ascent up a steep, single-lane cobblestone road that clings dramatically to the canyon’s edge, leading you to the iconic suspension bridge and the ghostly mine itself. Modern photographs, shown in the inserts, capture the iconic beauty of some of Mapimí’s famous sites. Benito Juárez Museum: 25.834166°Lat, -103.848510°Lon Templo de Santiago Apóstol: 25.833903°Lat, -103.848470°Lon Mapimi Plaza: 25.835270°Lat, -103.840922°Lon Penoles Archway: 25.837484°Lat, -103.841450°Lon Tourist Entrance: 25.842053°Lat, -103.816571°Lon American Dos Mine: 25.806631°Lat, -103.802129°Lon Ojuela Bridge: 25.792755°Lat, -103.790896°Lon A BRIEF INTRODUCTION TO MAPIMÍ INTRODUCTION The town of Mapimí is located in the northeastern part of the State of Durango, approximately 65 kilometers northwest of Torreón, Coahuila, and 820 kilometers south of El Paso, Texas. It can be reached from the east via a paved road (Highway 30) from Bermejillo, a distance of 25 kilometers, or from the west from La Zarca, a small village on the Parral-Durango Highway (Highway 45). Nestled within the sun-drenched expanse of Durango’s Chihuahuan Desert, the historic town owes its existence to the mineral rich Ojuela Mine. For centuries, this legendary source of Gold, Silver, Lead and Zinc fueled the town’s rise as a vital commercial and logistical hub, drawing a diverse populace of miners, engineers, and merchants. The immense wealth unearthed from the mine is immortalized in Mapimí’s colonial heart, most notably in the defiant, Baroque facade of the Templo de Santiago Apóstol, which features intricate stone carvings and sturdy bell towers. Beyond its mineral legacy, the town holds a pivotal place in national history; the Benito Juárez Museum now occupies the very house where the president briefly established his government-in-exile. Today, the boom years echo in the haunting silence of the Ojuela ghost town, where a skeletal suspension bridge spans a breathtaking chasm — a dramatic elegy to the industry that once forged this desert jewel. THE OJUELA MINE From Economic Engine to Historical Landmark The largest mine in the district, the Ojuela, plunges deep into the Mexican earth. Its name is a modern echo of its original, “Hojuela,” a title inspired by the exquisite, leaf-like texture of the Galena found within its depths. This legendary mine, one of the nation’s deepest and most productive, was the very source of Mapimí’s great wealth, forging the town’s fortune during its peak at the turn of the last century. Ore was discovered on the northern side of an east-trending arroyo near what is now the abandoned city of Ojuela. The “boca de mina,” the original discovery area, can still be seen, and its original hand-hewn steps in the limestone are still visible. The nearby town of Ojuela, located near the apex of two large ravines, had a population of almost 3,000 at its peak. During more active periods, a railroad connected Mapimí with Bermejillo, a station on the Mexican Central Railroad, while a small spur led 3.5 kilometers from Mapimí up the canyon to the mine. In 1893-94, the company Peñoles introduced electricity and built an arsenic plant that produced 1500 tons of refined white arsenic a year. To facilitate access, the impressive Puente de Ojuela was constructed to span the arroyo separating the main shafts from the mines to the south. Built by the John A. Roebling Company in 1899, it was, at that time, the second-longest suspension bridge in the world. The bridge is 325.83 meters long, 1.83 meters wide, and stands about 80 meters above the bottom of the arroyo. Despite its age, the overall structure remains strong. In the late 1880s, the Compañía Minera de Peñoles forged an industrial destiny for Mapimí, Durango, with the establishment of a massive smelter. This fiery crucible was the heart of a regional boom, built to process the immense wealth of Silver and Lead ores pouring from the legendary Ojuela Mine. The smelter’s insatiable appetite became a catalyst for progress, demanding the construction of a vital railroad and the awe-inspiring Ojuela Bridge. Together, these engineering marvels created an industrial lifeline that defined an era of intensive extraction. However, the same economic tides that created this powerhouse would also dismantle it. The fire of industry, so fiercely lit, began to cool in the 1920s. By 1921, Peñoles found it more profitable to centralize operations in cities like Torreón and Monterrey, and the systematic dismantling of the Mapimí smelter began. This coincided with the faltering pulse of the mine itself; its primary veins were becoming depleted, and production slowed to a trickle before ceasing almost entirely in the 1930’s. The once-thundering industrial complex fell silent. In its demise, however, the site found a new purpose, transitioning from a generator of mineral wealth to a custodian of history, where the ghosts of its industrial past now draw tourists to marvel at the legacy it left behind. The Modern Municipality of Mapimí The contemporary town of Mapimí has a population of several thousand inhabitants. The local economy has diversified from its historical reliance on mining and is now primarily supported by agriculture adapted to arid conditions and a growing tourism sector. The town’s well-preserved colonial architecture is a key attraction for visitors. Mapimí’s integration with regional transportation networks is crucial for its economic stability; Mexican Federal Highway 30 connects the town to Bermejillo, which in turn links to Mexican Federal Highway 49, a major national corridor providing vital access to larger urban centers like Gómez Palacio and Torreón. Geography and Climate Mapimí is situated at the base of the northern end of the Bufa de Mapimí, an elongated mountain approximately 3 kilometers wide with an axis that trends about 40° northwest. Seen from the west, its profile resembles a woman’s face. The mountain’s eastern side is steep and almost impassable, while the western slope is considerably gentler. The crest of the Bufa rises to an elevation of about 2700 meters, some 700 meters above the valley floor. The Ojuela mine is located on the east side of the mountain, about 400 meters below the crest. Geographically, the town is located within the Bolsón de Mapimí, a large endorheic basin that is part of the Chihuahuan Desert. The region is also known for the Mapimí Silent Zone (Zona del Silencio), an area noted in popular culture for alleged anomalous magnetic and radio phenomena, though these claims are not supported by scientific evidence. The climate is classified as desert, featuring hot summers with temperatures around 35°C and mild winters around 5°C. Annual precipitation is minimal, varying from 20 to 35 centimeters, most of which falls during the rainy season from July to October. Ecology and the Mapimí Biosphere Reserve The local flora and fauna are adapted to the arid environment. To conserve this unique and fragile ecosystem, the Mapimí Biosphere Reserve, a protected area recognized by UNESCO, was established. The reserve serves as a critical habitat for a diverse range of wildlife, including pumas, mule deer, and coyotes. It is particularly important for the conservation of the endangered Bolson tortoise (Gopherus flavomarginatus), the largest land reptile in North America. The vegetation is designated by botanists as Chihuahuan Desert Shrub. The dominant flora is xerophytic scrubland, composed of plant species that have evolved to tolerate prolonged drought. The most characteristic species is Larrea tridentata (creosote bush), which is associated with Acacia (huizachal), several species of Agave (lechugilla and maguey), Dasylirion wheeleri (sotol), Euphorbia anti-syphilitica (candelilla), Fouquieria splendens, at least four species of Opuntia (cholla), Prosopis (mesquite), and Yucca. In the higher portions of the district, especially on the western side of the Bufa, Quercus intricata (scrub oak) can be found. The principal crops of the area are corn and beans. (Author: silvia)
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Map of epidote locale at the Khowrin Mount, central Iran (Author: vhairap)
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Map with best spots of Tourmaline, Orthoclase, Beryl and Apatite...in the North Coast of Brittany (Author: Benj)
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MAPIMI, DURANGO, MEXICO.jpg (Author: d_hawtho)
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Marcasite Komořany, Most, Ústí Region, Bohemia, Czech Republic 5.6 x 6.1 cm Arborescent group of pale, bronze-yellow, spear-shaped crystals. This location is a classic locale for marcasite where it occurs in plastic clays associated with coal deposits. (Author: crosstimber)
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Marcasite Magnet Cove, Hot Spring County, Arkansas, USA 24.5 x 9.5 x 3.0 cm Marcasite "Weenie Dog" (Dachshund-shaped) Personally Collected (Author: Don Lum)
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Marcasite Poudrette quarry (Demix quarry; Uni-Mix quarry; Desourdy quarry; Carrière Mont Saint-Hilaire), Mont Saint-Hilaire, Rouville RCM, Montérégie, Québec, Canada FOV=2mm (Author: Doug)
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Marcasite San Juan de Rayas mine, Guanajuato, Guanajuato, México 80x60x25mm (Author: Carlos M.)
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Marcasite San Vicente mine, Guanajuato, Guanajuato, México 77x56x59mm (Author: Carlos M.)
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Marcasite after pyrite, calcite, quartz Freiberg district, Erzgebirge, Saxony, Germany. 9 x 6 cm (Author: Andreas Gerstenberg)
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Marcasite and Dolomite
Beez, Distrito Namur, Provincia Namur , Wallonia, Bélgica
fov 6.5 mm (Autor: ploum) -
Marcasite and Dolomite
Beez, Distrito Namur, Provincia Namur , Wallonia, Bélgica
fov 6.8 mm (Autor: ploum) -
Marcasite and Dolomite
Beez, Distrito Namur, Provincia Namur , Wallonia, Bélgica
fov 7.5 mm (Autor: ploum) -
Marcasite and Dolomite
Beez, Distrito Namur, Provincia Namur , Wallonia, Bélgica
fov 4.5 mm (Autor: ploum) -
Marcasite crystals with a slight green tarnish from Christiane mine, Adorf, Hesse. Sample width: 10,5 cm. (Author: Andreas Gerstenberg)
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Marcasite nodule. 45 x 30 mm Kansas USA, at least thats what its supposed to be, its a Boji Stone, I bought it because it looks like a flying saucer, not for any alleged mystical properties. (Author: nurbo)
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Marcasite nodules Weardale UK largest 75 x 50 mm (With lense ding top centre) (Author: nurbo)
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Marcasite on brownish rhodochrosite matrix from Neue Hoffnung Gottes mine, Bräunsdorf, Freiberg district, Saxony. Sample width: 6,5 cm. (Author: Andreas Gerstenberg)
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Marcasite on Dolomite
Albvorlandtunnel, Wendlingen, Distrito Esslingen, Región Stuttgart, Baden-Württemberg, Alemania
8 x 3,5 cm (Autor: Volkmar Stingl) -
Marcasite on Dolomite
Mina de Reocín, Reocín, Comarca Saja-Nansa, Cantabria, España
main crystal size: 0.6 × 0.5 cm (Autor: Jordi Fabre) -
Marcasite ps. pyrrhotite Baia Sprie, Maramures, Romania 4.2 x 6.2 cm. Sharp platy pyrrhotite crystals replaced by marcasite. Mined circa 1969. (Author: crosstimber)
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Marcasite Pyrite Dolomite Frizington Parks Mine, Frizington, Cumbria, England, UK. FOV 15 x 15 mm approx (Author: nurbo)
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Marcasite, Arsenopyrite, Calcite-Dolomite, Muscovite
Minas da Panasqueira, Aldeia de São Francisco de Assis, Covilhã, Castelo Branco, Cova da Beira, Centro, Portugal
10 cm x 9 cm x 8 cm (Autor: silvia) -
Marcasite, Arsenopyrite, Calcite-Dolomite, Muscovite
Minas da Panasqueira, Aldeia de São Francisco de Assis, Covilhã, Castelo Branco, Cova da Beira, Centro, Portugal
10 cm x 9 cm x 8 cm (Autor: silvia) -
Marcasite, Arsenopyrite, Calcite-Dolomite
Minas da Panasqueira, Aldeia de São Francisco de Assis, Covilhã, Castelo Branco, Cova da Beira, Centro, Portugal
10 cm x 9 cm x 8 cm (Autor: silvia) -
Marcasite, Arsenopyrite, Dolomite, Muscovite
Minas da Panasqueira, Aldeia de São Francisco de Assis, Covilhã, Castelo Branco, Cova da Beira, Centro, Portugal
10 cm x 7 cm x 5 cm (Autor: silvia) -
Marcasite, Arsenopyrite, Dolomite, Muscovite
Minas da Panasqueira, Aldeia de São Francisco de Assis, Covilhã, Castelo Branco, Cova da Beira, Centro, Portugal
10 cm x 7 cm x 5 cm (Autor: silvia) -
Marcasite, Arsenopyrite, Quartz, Dolomite, Muscovite
Minas da Panasqueira, Aldeia de São Francisco de Assis, Covilhã, Castelo Branco, Cova da Beira, Centro, Portugal
10 cm x 7 cm x 5 cm (Autor: silvia) -
Marcasite, Arsenopyrite, Quartz, Dolomite, Muscovite
Minas da Panasqueira, Aldeia de São Francisco de Assis, Covilhã, Castelo Branco, Cova da Beira, Centro, Portugal
10 cm x 7 cm x 5 cm (Autor: silvia) -
Marcasite, Arsenopyrite
Minas da Panasqueira, Aldeia de São Francisco de Assis, Covilhã, Castelo Branco, Cova da Beira, Centro, Portugal
10 cm x 9 cm x 8 cm (Autor: silvia) -
Marcasite, Arsenopyrite
Minas da Panasqueira, Aldeia de São Francisco de Assis, Covilhã, Castelo Branco, Cova da Beira, Centro, Portugal
10 cm x 9 cm x 8 cm (Autor: silvia) -
Marcasite, calcite
Mina Linwood, Buffalo, Condado Scott, Iowa, USA
5.1 x 7.2 cm (Autor: crosstimber) -
Marcasite, calcite
Mina Linwood, Buffalo, Condado Scott, Iowa, USA
5.1 x 7.2 cm (Autor: crosstimber) -
Marcasite, Dolomite
Mina de Reocín, Reocín, Comarca Saja-Nansa, Cantabria, España
60x58x25mm (Autor: Fiebre Verde) -
Marcasite, Galena, Sphalerite
Mina Ballard, Baxter Springs, Picher Field, Distrito Tri-State, Condado Cherokee, Kansas, USA
7.5 x 6.5 cm (Autor: Michael Shaw) -
Marcasite, Pyrite, Arsenopyrite, Calcite & Quartz
Minas da Panasqueira, Aldeia de São Francisco de Assis, Covilhã, Castelo Branco, Cova da Beira, Centro, Portugal
6 cm x 6 cm x 4 cm (Autor: silvia) -
Marcasite, Pyrite, Arsenopyrite, Calcite & Quartz
Minas da Panasqueira, Aldeia de São Francisco de Assis, Covilhã, Castelo Branco, Cova da Beira, Centro, Portugal
6 cm x 6 cm x 4 cm (Autor: silvia) -
Marcasite, Pyrite, Arsenopyrite, Calcite & Quartz
Minas da Panasqueira, Aldeia de São Francisco de Assis, Covilhã, Castelo Branco, Cova da Beira, Centro, Portugal
6 cm x 6 cm x 4 cm (Autor: silvia) -
Marcasite, Pyrite, Arsenopyrite, Calcite & Quartz
Minas da Panasqueira, Aldeia de São Francisco de Assis, Covilhã, Castelo Branco, Cova da Beira, Centro, Portugal
6 cm x 6 cm x 4 cm (Autor: silvia) -
Marcasite, Pyrite, Arsenopyrite, Calcite & Quartz
Minas da Panasqueira, Aldeia de São Francisco de Assis, Covilhã, Castelo Branco, Cova da Beira, Centro, Portugal
6 cm x 6 cm x 4 cm (Autor: silvia) -
Marcasite, Quartz
Xiamei, Wuyishan, Prefectura Nanping, Provincia Fujian, China
4,5 x 4,5 cm (Autor: Volkmar Stingl) -
Marcasite, Quartz
Xiamei, Wuyishan, Prefectura Nanping, Provincia Fujian, China
4 x 4 cm (Autor: Volkmar Stingl) -
Marcasite, Quartz
Mina Bou Nahas, zona minera Oumjrane, Comunidad Alnif, Provincia Tinghir, Región Drâa-Tafilalet, Marruecos
140 mm x 90 mm x 80 mm (Autor: silvia) -
Marcasite, Quartz
Mina Bou Nahas, zona minera Oumjrane, Comunidad Alnif, Provincia Tinghir, Región Drâa-Tafilalet, Marruecos
140 mm x 90 mm x 80 mm (Autor: silvia) -
Marcasite, Quartz
Mina Bou Nahas, zona minera Oumjrane, Comunidad Alnif, Provincia Tinghir, Región Drâa-Tafilalet, Marruecos
140 mm x 90 mm x 80 mm (Autor: silvia) -
Marcasite, Quartz
Mina Bou Nahas, zona minera Oumjrane, Comunidad Alnif, Provincia Tinghir, Región Drâa-Tafilalet, Marruecos
140 mm x 90 mm x 80 mm (Autor: silvia) -
Marcasite, Tetrahedrite, Galena
Mina Naica, Naica, Municipio Saucillo, Chihuahua, México
90 mm x 60 mm x 45 mm (Autor: Robert Seitz)Marcasite, Tetrahedrite, Galena
Mina Naica, Naica, Municipio Saucillo, Chihuahua, Méxi -
Marcasite/Pyrite in Dolomite Frizington Parks Mine, Frizington, Cumbria, England, UK. FOV 15 x 10 approx (Author: nurbo)
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Marcasite/Pyrite in Dolomite w Sulphur (?) Frizington Parks Mine, Frizington, Cumbria, England, UK. 30 x 25 mm (Author: nurbo)
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Marcasite Belle Fourche Reservoir, South Dakota, USA 6 x 6 x 4 cm (Author: Joseph D'Oliveira)
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Marcasite Belle Fourche Reservoir, South Dakota, USA 2.5 cm in diameter Two additional spike balls of marcasite from Belle Fourche (Author: Joseph D'Oliveira)
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Marcasite
Mina Bou Nahas, zona minera Oumjrane, Comunidad Alnif, Provincia Tinghir, Región Drâa-Tafilalet, Marruecos
1.5 x 10.5 cm (Autor: crosstimber) -
Marcasite
Mina Bou Nahas, zona minera Oumjrane, Comunidad Alnif, Provincia Tinghir, Región Drâa-Tafilalet, Marruecos
1.5 x 10.5 cm (Autor: crosstimber) -
Marcasite
Temple, Condado Bell, Texas, USA
5.7 x 5.8 cm (Autor: crosstimber) -
Marcasite
Picher Field, Distrito Tri-State, Condado Ottawa, Oklahoma, USA
70 mm X 55 mm X 50 mm (Autor: Robert Seitz) -
Marcasite
Picher Field, Distrito Tri-State, Condado Ottawa, Oklahoma, USA
70 mm X 55 mm X 50 mm (Autor: Robert Seitz) -
Marcasite
Picher Field, Distrito Tri-State, Condado Ottawa, Oklahoma, USA
70 mm X 55 mm X 50 mm (Autor: Robert Seitz) -
Marcasite
Mina Naica, Naica, Municipio Saucillo, Chihuahua, México
70 mm x 50 mm x 50 mm (Autor: Robert Seitz) -
Marcasite
Mina Linwood, Buffalo, Condado Scott, Iowa, USA
3.0 x 4.1 cm (Autor: crosstimber) -
Marcasite
Zona minera Oumjrane, Comunidad Alnif, Provincia Tinghir, Región Drâa-Tafilalet, Marruecos
6x5 cm. (Autor: Enrique Llorens) -
Marcasite
Beez, Distrito Namur, Provincia Namur , Wallonia, Bélgica
fov 5.0 mm (Autor: ploum) -
Marcasite
Beez, Distrito Namur, Provincia Namur , Wallonia, Bélgica
fov 5.0 mm (Autor: ploum) -
Marcasite
Mina Conco, North Aurora, Condado Kane, Illinois, USA
2.1 x 2.3 x 8.1 cm (Autor: Michael Shaw) -
Marcasite
Kramstollen (Túnel Kram), Brixlegg, Distrito Kufstein, Valle Inn, Tirol Norte, Tirol, Austria
2 x 2 cm (Autor: Volkmar Stingl) -
Marcasite
Großkogel, St Gertraudi, Reith im Alpbachtal, Distrito Kufstein, Valle Inn, Tirol Norte, Tirol, Austria
2 x 2 cm (Autor: Volkmar Stingl) -
Marcasite
Cap Blanc-Nez, Pas-de-Calais, Hauts-de-France, Francia
2,7 x 2 cm (Autor: Volkmar Stingl) -
Marcasite
Beez, Distrito Namur, Provincia Namur , Wallonia, Bélgica
fov 6.06 mm (Autor: ploum) -
Marcasite
Mina de Reocín, Reocín, Comarca Saja-Nansa, Cantabria, España
3,5 x 3 cm (Autor: Volkmar Stingl) -
Marcasite
Mina de Reocín, Reocín, Comarca Saja-Nansa, Cantabria, España
3,5 x 3 cm (Autor: Volkmar Stingl) -
Marcasite
Beez, Distrito Namur, Provincia Namur , Wallonia, Bélgica
fov 4.2 mm (Autor: ploum) -
Marcasite
Beez, Distrito Namur, Provincia Namur , Wallonia, Bélgica
fov 4.8 mm (Autor: ploum) -
Marcasite
Mina de Reocín, Reocín, Comarca Saja-Nansa, Cantabria, España
55 mm x 38 mm (Autor: Carles Millan) -
Marcasite
Mina Linwood, Buffalo, Condado Scott, Iowa, USA
4.0 x 0.5 cm (Autor: Michael Shaw) -
Marcasite
Mina Sweetwater, Ellington, Distrito Viburnum Trend, Condado Reynolds, Missouri, USA
9.8 x 7.4 x 6.9 cm (Autor: Michael Shaw) -
Marcasite
Mina Sweetwater, Ellington, Distrito Viburnum Trend, Condado Reynolds, Missouri, USA
9.8 x 7.4 x 6.9 cm. (Autor: Michael Shaw) -
Marcassite
Mina Linwood, Buffalo, Condado Scott, Iowa, USA
75mm x 15mm X 15mm (Autor: Philippe Durand) -
March 2013. Opal outcrop, Camarillas reservoir, Agramón, Hellín, Comarca Campos de Hellín, Albacete, Castilla-La Mancha, Spain (Author: franjungle)
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march titanites 003.JPG (Author: Glenn Rhein)
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march titanites 010.JPG (Author: Glenn Rhein)
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march titanites 011.JPG (Author: Glenn Rhein)
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Margarite Melvin Mine, Chester, Hampden Co,, Massachusetts, USA 7.5 x 10.2 cm Pink margarite with minor green clinochlore and magnetite from another classic Massachusetts locality. The magnetite at this location was mixed with corundum and was mined as emery for abrasives. Self collected. (Author: crosstimber)
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Margarosanite, Clinohedrite, Willemite Franklin, NJ 4x4 (Author: LennyL)
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Maricopaite, Mimite
Mina Moon Anchor, Hummingbird Spring, Distrito Osborn, Montes Bighorn, Condado Maricopa, Arizona, USA
FOV = 1.8 mm (Autor: Doug) -
Marius, the person who discovered the pocket. (Author: Pierre Joubert)
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Mark Mauthner and Jim Spann. Mark is holding the pyromorphite on the cover of the MinRec. that Jim is holding. Mark wrote his first article for this issue. (Author: Gail)
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Mark Randle with nice amethyst specimen also covered by mud. (Author: John S. White)
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Marokko.JPG (Author: Tobi)
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Marshallsussmanite, Aegirine Wessels Mine, Kalahari Manganese Field, Northern Cape Province, South Africa 7 x 5.3 cm Named in 2013 in honor of Marshall Sussman, U.S. mineral collector who specializes in South African and Namibian minerals. (Author: Don Lum)
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Marshallsussmanite
Mina Wessels, Hotazel, Kalahari manganese field (KMF), Provincia Septentrional del Cabo, Sudáfrica
6.5 cm (Autor: Gail) -
Marthosite Musonoi - Katanga, DRCongo (Author: Roger Warin)
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Martinite
Cantera Poudrette, Mont Saint-Hilaire, La Vallée-du-Richelieu RCM, Montérégie, Québec, Canadá
FOV = 2mm (Autor: Doug) -
martite still in the mail. 9.4 cm x 7.1 cm x 5.5 cm (Author: Samuel)
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Mas Sever Quarry (Massabé Quarry) - November 2007 Photo: Pepe (Author: Jordi Fabre)
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Mina Mashamba West, Distrito Kolwezi, Lualaba, Cinturón de cobre de Katanga, Katanga (Shaba), República Democrática del Congo (Zaire)
(Autor: silvia) -
mass of graphite (Author: Glenn Rhein)
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Massabe Quarry in december 2005 (Author: Sergio)
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Massive antimonite from Greiz, Thuringia (maybe from Waldhaus or Kleinreinsdorf). Sample width: 12 cm. (Author: Andreas Gerstenberg)
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Massive berthierite with characteristic blue tarnish. 9 cm rich ore sample from Heinrich Stehender vein, 13th level, Alte Hoffnung Gottes mine, Kleinvoigtsberg near Freiberg, Saxony. (Author: Andreas Gerstenberg)
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Massive bluish grey berthierite - a very rich oldtimer from Kuhschacht, Bräunsdorf (near the famous Neue Hoffnung Gottes mine), Freiberg district, Erzgebirge, Saxony. Sample 7 cm in width. (Author: Andreas Gerstenberg)
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Massive bornite, a rather rare mineral from Kamsdorf, Thuringia. Picture width: 11 cm. (Author: Andreas Gerstenberg)
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massive fluorite El Portalet.... 55*44 mm (Author: Benj)
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Massive pyrargyrite ("Rotgültig") in dolomite/fluorite matrix from König David mine, Annaberg district, Erzgebirge, Saxony. 6,5 cm sample. (Author: Andreas Gerstenberg)
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Massive Sauberg fluorite - a rarity from the 243 working. 6,5 cm polished sample. Similar fluorites are known from the Freiberg district, Saxony (green and violet from the Trau auf Gott mine/Lichtenberg and - very, very rare - from Schwemmpfennig mine/Muldenhütten), from Johnsbach and Rittersgrün, Saxony and from the famous fluorite district Wölsendorf, Bavaria. (Author: Andreas Gerstenberg)
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Massive tetraedrite with chalkopyrite. Rich ore sample (12 x 10 cm) from Hohe Birke mine, Freiberg, Erzgebirge. (Author: Andreas Gerstenberg)
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Massive tinticite with some dark brown jarosite from the Weckersdorf quarry, Zeulenroda, Thuringia. This material looks precisely as the kamarizaite from Lavrion/Greece. (Author: Andreas Gerstenberg)
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Massive ullmannite ore from Baudenberg, Neunkirchen, Siegerland, Westphalia. Sample 10 cm. (Author: Andreas Gerstenberg)
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Massive, zoned fluorite from the Pfeifer mine, Wölsendorf, Bavaria. 8 cm sample with 1920s label, former Wilhelm Vierling (wilhelmvierlingite!) collection. (Author: Andreas Gerstenberg)
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mat board, two colours, for a double mat. (Author: Gail)
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matted (Author: Gail)
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matted with decorative corners. (Author: Gail)
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matted. (Author: Gail)
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Maucherite
Eisleben, Mansfeld Basin, Sajonia-Anhalt/Sachsen-Anhalt, Alemania
fov 4 mm (Autor: Rewitzer Christian) -
Mawbyite on Scorodite (close up) Tsumeb, Namibia Specimen: William Pinch Collection Photo: Jeff Scovil & The RRUFF Project (Author: Pinch Bill)
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Mawbyite red brown xls on Scorodite xls and Quartz xls Tsumeb, Namibia Size: Miniature Specimen: William Pinch Collection Photo: Jeff Scovil & The RRUFF Project (Author: Pinch Bill)
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May be the best location for German lithiophorites: Lenzhahn quarzite quarry, Idstein, Taunus, Hesse. Sample 6 cm. The mineral is often accompanied by yellowish florencite. (Author: Andreas Gerstenberg)
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Maybe its not a 7 but a W (Author: nurbo)
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Maybe this is why it’s called Dubh Lochan. On this reflective morning, and in the eerie stillness, the surface of the water seemed to turn into a Black Hole. (Author: Mike Wood)
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Mazzite-Na
Cantera Poudrette, Mont Saint-Hilaire, La Vallée-du-Richelieu RCM, Montérégie, Québec, Canadá
FOV = 2.6 mm (Autor: Doug) -
mbmbmb.JPG (Author: Pierre Joubert)
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Mcguinnessite
Mina Sierra Magnesite (Mina Premier Chemicals), Gabbs, Distrito Gabbs, Condado Nye, Nevada, USA
FOV = 3.9 mm (Autor: Doug) -
McGuinnessite
Mina Casualidad, Cordillera de los Picachos, Baños de Sierra Alhamilla, Pechina, Comarca Metropolitana de Almería, Almería, Andalucía, España
FOV 3,2 mm (Autor: Rewitzer Christian) -
Mckelveyite-(Y) Poudrette quarry (Demix quarry; Uni-Mix quarry; Desourdy quarry; Carrière Mont Saint-Hilaire), Mont Saint-Hilaire, Rouville RCM, Montérégie, Québec, Canada FOV=4mm (Author: Doug)
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Bretaña/Bretagne, Francia
(Autor: Benj) -
Me and my "Ordinary" Victoria. 52 inch wheel also known as Penny Farthing. (Author: Gail)
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Me and my "OTHER" collection... (Author: Gail)
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Me removing a large rock of sandstone. (Author: Pierre Joubert)
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Me, doing what I love:-) (Author: Pierre Joubert)
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Meanwhile back in the cave..This was obviously a pre-dug cave, the floor was a couple of feet deep in small rubble, which I had a scrape around in and found a few pink fluorite crystals! A bit rough but pink and octahedral to a cm or two, mostly broken. In the back of the 4m deep cave there was a mossy crack just big enough to get your arm in. My headtorch revealed shiny faces, at full arm stretch. I could see the big smoky; it looked as if previous visitors had seen it too as it had a few bruises where someone had tried to dislodge it by jabbing an ice-axe at it. I managed to lever it out with mine, also utilising the lumphammer. I found several loose smaller smokies in the crack by feeling around, and getting cut in the process. Some of them are nice little floaters. After a couple of hour I had to go, back on route up the arete to the top. It was very exposed and I had to use a ’back-rope’ kind of technique to protect myself; this was a first for me. Photo scanned from slide. (Author: Mike Wood)
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Příbram, Región Bohemia Central, Bohemia, República Checa
(Autor: Psax) -
Meikle Mine Barite with Calcite personally collected by Casey Jones (large cabinet). Size: 12.5 cm (Author: GneissWare)
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Meikle Mine Millerite with Spahlerite on Pyrite personally collected by Casey Jones (large cabinet) - now in the French national museum. Size: 9.5 cm (Author: GneissWare)
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Meionite Somma-Vesuvius Complex, Naples Province, Campania, Italy 2.85 mm area with some Meionite crystals (Author: Matteo_Chinellato)
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meionite (Author: Glenn Rhein)
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Meionite (Author: Glenn Rhein)
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Meionite (Author: Glenn Rhein)
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Meionite (Author: Glenn Rhein)
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Meionite and Titanite (Author: Glenn Rhein)
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meionite group (Author: Glenn Rhein)
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meionite, diopside, titanite and fluorapatite (Author: Glenn Rhein)
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Meionite
Cantera Poudrette, Mont Saint-Hilaire, La Vallée-du-Richelieu RCM, Montérégie, Québec, Canadá
FOV = 5mm (Autor: Doug) -
Meionite
Cantera San Vito, Monte Somma, Complesso Somma-Vesuvio, Ciudad metropolitana de Nápoles, Campania, Italia
4 x 3,5 cm (Autor: Volkmar Stingl) -
Meionite
Cantera San Vito, Monte Somma, Complesso Somma-Vesuvio, Ciudad metropolitana de Nápoles, Campania, Italia
4 x 3,5 cm (Autor: Volkmar Stingl) -
meionitevug 006.JPG (Author: Glenn Rhein)
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meionitevug 008.JPG (Author: Glenn Rhein)
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Melanite Arrondissement Diako, Bafoulabé Circle, Kayes Region, Mali Largest crystal 1,5 m, Field of view 6 cm (Author: Tobi)
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Melanophlogite Fortulino. Livorno. Italy Sphere 2,8mm 2x. Focus rail MacroRail. Canon EOS 600D. Light Ikea Photo: Oscar Fernández Arcís Mineral: Manuel De Torres (Author: ofarcis)
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Melanophlogite Fortullino, Rosignano Marittimo, Livorno Province, Tuscany, Italy 3.58 mm group of cubic Melaphlogite crystals (Author: Matteo_Chinellato)
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Melanophlogite Fortullino, Rosignano Marittimo, Livorno Province, Tuscany, Italy 3.19 mm group of cubic Melaphlogite crystals (Author: Matteo_Chinellato)
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Melanophlogite Fortullino, Rosignano Marittimo, Livorno Province, Tuscany, Italy 3.92 mm group of Melanophlogite balls (Author: Matteo_Chinellato)
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Melanophlogite Fortullino, Rosignano Marittimo, Livorno Province, Tuscany, Italy 3.83 mm group of Melanophlogite balls (Author: Matteo_Chinellato)
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Melanophlogite Fortullino, Rosignano Marittimo, Livorno Province, Tuscany, Italy 6.03 mm group of Melanophlogite balls (Author: Matteo_Chinellato)
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Melanophlogite, Quartz
Fortullino, Rosignano Marittimo, Provincia Livorno, Toscana, Italia
33 x 32 mm (Autor: Sante Celiberti) -
Melanophlogite
Cantera Borges, Lombard, Condado Napa, California, USA
FOV = 3.8 mm (Autor: Doug) -
Melanophlogite
Fortullino, Rosignano Marittimo, Provincia Livorno, Toscana, Italia
5.6 cm x 7.0 cm (Autor: Sante Celiberti) -
Melanophlogite
Fortullino, Rosignano Marittimo, Provincia Livorno, Toscana, Italia
42,8 x 31,7 mm (Autor: Sante Celiberti) -
Melanophlogite
Fortullino, Rosignano Marittimo, Provincia Livorno, Toscana, Italia
42,8 x 31,7 mm (Autor: Sante Celiberti) -
Melanophlogite
Fortullino, Rosignano Marittimo, Provincia Livorno, Toscana, Italia
42,8 x 31,7 (Autor: Sante Celiberti) -
Melanophlogite
Fortullino, Rosignano Marittimo, Provincia Livorno, Toscana, Italia
33 x 32 mm (Autor: Sante Celiberti) -
Melanophlogite
Fortullino, Rosignano Marittimo, Provincia Livorno, Toscana, Italia
9 x 6 cm (Autor: Volkmar Stingl) -
Melanophlogite
Fortullino, Rosignano Marittimo, Provincia Livorno, Toscana, Italia
9 x 6 cm (Autor: Volkmar Stingl) -
Melanterite 65 x 40 x 29 mm Stamm Asser mine, Graul, Raschau, Erzgebirge, Saxony, Germany. (Author: Andreas Gerstenberg)
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Melanterite Rammelsberg mine, Rammelsberg, Goslar, Harz, Lower Saxony, Germany 3,5 x 3 cm (Author: Andreas Gerstenberg)
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Melanterite Filón Norte, Tharsis, Alosno, Huelva, Spain The formation of beautiful melanterite in Filon Norte during cold days soon after raining, is an interesting phenomenon. Occasionally, the crystals are up to 5-10 cm., covering dozens of square meters of soil under the massive pyrite stockpiles. (Author: Cesar M. Salvan)
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Melanterite
Mina Fenice Capanne, Massa Marittima, Provincia Grosseto, Toscana, Italia
20 x 18,5 cm (Autor: Sante Celiberti) -
Melanterite
Mina Fenice Capanne, Massa Marittima, Provincia Grosseto, Toscana, Italia
20 x 18,5 cm (Autor: Sante Celiberti) -
Mellite crystal fragments in ancient vial (6 cm) from the type locality, Auguste coal mine near Artern, Thuringia. (Author: Andreas Gerstenberg)
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Melnikovite
Mina Niccioleta, Massa Marittima, Provincia Grosseto, Toscana, Italia
14 x 10 cm (Autor: Sante Celiberti) -
melnikovite
Mina Campiano, Montieri, Provincia Grosseto, Toscana, Italia
37 x 29 mm (Autor: Sante Celiberti) -
Meneghinite, Boulangerite
Mina Bottino, Sant'Anna (Sant'Anna di Stazzema), Alpes Apuanos, Municipio Stazzema, Provincia Lucca, Toscana, Italia
20 x 10 cm (Autor: Sante Celiberti) -
Meneghinite, Boulangerite
Mina Bottino, Sant'Anna (Sant'Anna di Stazzema), Alpes Apuanos, Municipio Stazzema, Provincia Lucca, Toscana, Italia
20 x 10 cm (Autor: Sante Celiberti) -
Meneghinite, Boulangerite
Mina Bottino, Sant'Anna (Sant'Anna di Stazzema), Alpes Apuanos, Municipio Stazzema, Provincia Lucca, Toscana, Italia
20 x 10 cm (Autor: Sante Celiberti) -
Meneghinite, Quartz
Mina Bottino, Sant'Anna (Sant'Anna di Stazzema), Alpes Apuanos, Municipio Stazzema, Provincia Lucca, Toscana, Italia
49 x 28 mm (Autor: Sante Celiberti) -
Meneghinite, Quartz
Mina Bottino, Sant'Anna (Sant'Anna di Stazzema), Alpes Apuanos, Municipio Stazzema, Provincia Lucca, Toscana, Italia
49 x 28 mm (Autor: Sante Celiberti) -
Meneghinite, Sphaleerite, Galena
Mina Bottino, Sant'Anna (Sant'Anna di Stazzema), Alpes Apuanos, Municipio Stazzema, Provincia Lucca, Toscana, Italia
87 x 59 mm (Autor: Sante Celiberti) -
Meneghinite, Sphalerite, Galena
Mina Bottino, Sant'Anna (Sant'Anna di Stazzema), Alpes Apuanos, Municipio Stazzema, Provincia Lucca, Toscana, Italia
87 x 59 mm (Autor: Sante Celiberti) -
Meneghinite, Sphalerite, Galena
Mina Bottino, Sant'Anna (Sant'Anna di Stazzema), Alpes Apuanos, Municipio Stazzema, Provincia Lucca, Toscana, Italia
87 x 59 mm (Autor: Sante Celiberti) -
Mercury
Mina Socrates, Zona Castle Rock Springs, Distrito West Mayacmas, Condado Sonoma, California, USA
4.6 x 6.9 cm (Autor: crosstimber) -
Merle and our dog, Albite. He LOVES her! (Author: Gail)
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Mesolite Kannad, Aurangabad District, Maharashtra, India 7.6 x 8.2 cm. Light tan sphere of mesolite with with small pinkish-tan heulandite crystals on brown basalt. Collected in 2009. (Author: crosstimber)
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Mesolite Lonavala, Pune District, Maharashtra, India 4.5 x 11.7 cm. Divergent sprays of colorless mesolite on a thin rind of basalt and pale pink stilbite. (Author: crosstimber)
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Mesolite Talisker Bay, Isle of Skye, Scotland, UK 6 cm x 5 cm x 4 cm Mesolite crystals to 13mm in analcime-lined gas cavity in basalt rock. Self-collected 1988. (Author: Mike Wood)
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Mesolite on Apophyllite on Trapp basalt matrix, Poonah district, India. (Author: Montanpark)
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Mesolite (?), Analcime, Heulandite-Ca
Hvalfjörður, Reikiavik Norte, Islandia
46x38x12mm (Autor: Bergur_E_Sigurdarson)Mesolite (?), Analcime, Heulandite-Ca
Hvalfjörður, Reikiavik Norte, -
Mesolite (?), Analcime
Hvalfjörður, Reikiavik Norte, Islandia
78x73x50mm (Autor: Bergur_E_Sigurdarson) -
Mesolite + Chabazite Moonen Bay, Isle of Skye, Scotland, UK 70 mm x 55 mm high x 25 mm Mesolite in attractive radiating clusters to 13mm across on pink twinned chabazite crystals. From the south end of Moonen Bay. Self-collected 1997. (Author: Mike Wood)
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Mesolite + Stilbite Sgurr nam Boc, Isle of Skye, Scotland, UK 9 cm high x 5 cm x 4 cm Superb mesolite ’ball’ 50mm across, with white stilbite crystals, resting on coloured chabazite crystals. The mesolite ball is not complete; it is cleaved across the back - but it displays well ! From the same boulder as the previous photographed specimen. Self-collected 2006. (Author: Mike Wood)
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Mesolite on Apophyllite on Trapp basalt matrix, Poonah district, India. Size 12 x 10.5 x 7.5 cm. (Author: Montanpark)
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Mesolite on Thomsonite
Khadakwani, Distrito Khargone, Madhya Pradesh, India
5 x 4 cm (Autor: Volkmar Stingl) -
Mesolite on Thomsonite
Khadakwani, Distrito Khargone, Madhya Pradesh, India
6 x 4,5 cm (Autor: Volkmar Stingl) -
Mesolite on Thomsonite
Khadakwani, Distrito Khargone, Madhya Pradesh, India
6 x 4,5 cm (Autor: Volkmar Stingl) -
Mesolite or Natrolite Sgurr nam Boc, Isle of Skye, Scotland, UK 9 cm high x 6 cm x 4 cm Large ’mesolite’ crystals collected from wave-cut platform at south end of beach at Sgurr nam Boc. I have a recollection that this material was tested, and it may be natrolite - but I can’t remember now ! It is certainly the largest of its type I have seen from Skye. Self-collected 2003. (Author: Mike Wood)
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Mesolite, 'Chabazite'
Cantera Upper Ritter, Ritter, Condado Grant, Oregon, USA
FOV = 3.4 mm (Autor: Doug) -
Mesolite/Natrolite, Stilbite, Heulandite
Hvalfjörður, Reikiavik Norte, Islandia
17cm x 10,5cm x 7cm (Autor: Bergur_E_Sigurdarson)Mesolite/Natrolite, Stilbite, Heulandite
Hvalfjörður, Reikiavik Nort -
Mesolite/Natrolite, Stilbite, Heulandite
Hvalfjörður, Reikiavik Norte, Islandia
17cm x 10,5cm x 7cm (Autor: Bergur_E_Sigurdarson)Mesolite/Natrolite, Stilbite, Heulandite
Hvalfjörður, Reikiavik Nort -
Mesolite
Kannad, Distrito Aurangabad, División Aurangabad, Maharashtra, India
H:2.2cm x W:9.2cm x D:5.8cm (Autor: Adrian Pripoae) -
Mesolite
Kannad, Distrito Aurangabad, División Aurangabad, Maharashtra, India
11.4 cm (Autor: crosstimber) -
Mesolite
Distrito Ahmadnagar, Maharashtra, India
163mm x 152mm x 103mm (Autor: Don Lum) -
Mesolite
Distrito Ahmadnagar, Maharashtra, India
163mm x 152mm x 103mm (Autor: Don Lum) -
Mesolite
Distrito Ahmadnagar, Maharashtra, India
163mm x 152mm x 103mm (Autor: Don Lum) -
Mesolite
Meshgin Shahr, Distrito Meshgin Shahr, Provincia Ardabil, Irán
12 * 10 cm (Autor: h.abbasi) -
Mesolite
Lonavale (Lonavala), Distrito Pune (Distrito Poonah), Maharashtra, India
4.5 x 11.7 cm (Autor: crosstimber) -
Mesolite
Cap d'Or, Bahía de Fundy, Parrsboro, Condado Cumberland, Nueva Escocia, Canadá
6.8 x 7.7 cm (Autor: crosstimber) -
Mesolite
Cantera Upper Ritter, Ritter, Condado Grant, Oregon, USA
FOV = 3.8 mm (Autor: Doug) -
Mesolite
Cantera Upper Ritter, Ritter, Condado Grant, Oregon, USA
FOV = 4.3 mm (Autor: Doug) -
Mesolite
Canteras Pashan, Pashan, Distrito Pune (Distrito Poonah), Maharashtra, India
fov 46 mm (Autor: ploum) -
Mesolite
Cantera Upper Ritter, Ritter, Condado Grant, Oregon, USA
2.5 x 2.0 cm (Autor: Michael Shaw) -
Mesolite
Canteras Pashan, Pashan, Distrito Pune (Distrito Poonah), Maharashtra, India
7.0 x 4.5 x 2.5 cm (Autor: Michael Shaw) -
Messina 5 shaft hematite crystals on hematite included quartz crystal-south africa.jpg (Author: Anton Potgieter)
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Meta autunite São Pedro Claim, Malacacheta, Minas Gerais, Brazil 1.6 x 3.0 cm. Books of lemon yellow, bladed crystals to forming an intergrown cluster. Obtained from Carlos Barbosa in 1993. (Author: crosstimber)
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Meta-autunite
Mina Margnac, Compreignac, Bellac, Departamento Haute-Vienne, Nouvelle-Aquitaine, Francia
3 cm (Autor: Benj) -
Meta-autunite
Mina Daybreak, Monte Kit Carson, Condado Spokane, Washington, USA
3.5 x 5.1 cm (Autor: crosstimber) -
Meta-autunite
Mina Margnac II, Compreignac, Bellac, Departamento Haute-Vienne, Nouvelle-Aquitaine, Francia
3 cm (Autor: Benj) -
Meta-Autunite
Malacacheta, Municipio Malacacheta, Vale do Mucuri, Minas Gerais, Brasil
1.6 x 3.0 cm (Autor: crosstimber) -
Meta-torbernite Assuncao Mine, Aldea Nova, Viseu Dist., Portugal 6.4 x 9.5 cm, FOV ~ 4.0 cm. Emerald green crystals to 3.0 mm on quartz. (Author: crosstimber)
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Meta-Torbernite
Mina El Sherana, Río South Alligator, Región West Arnhem, Territorio del Norte, Australia
80 mm x 70 mm x 60 mm (Autor: silvia) -
Meta-Torbernite
Mina El Sherana, Río South Alligator, Región West Arnhem, Territorio del Norte, Australia
80 mm x 70 mm x 60 mm (Autor: silvia) -
Meta-Torbernite
Mina El Sherana, Río South Alligator, Región West Arnhem, Territorio del Norte, Australia
80 mm x 70 mm x 60 mm (Autor: silvia) -
Metacinnabar
Mina Mount Diablo, Mount Diablo, Parque Estatal Mount Diablo, Clayton, Condado Contra Costa, California, USA
FOV = 4.0 mm (Autor: Doug) -
Metahewettite
Concesión VanNavSan, Cordillera Fish Creek, Distrito Gibellini, Condado Eureka, Nevada, USA
FOV = 3.3 mm (Autor: Doug)