-
Olivine series, Forsterite var.Peridot with Calcite; Sapat Gali (Soppat), Kohistan, Pakistan.
50x35x33mm, 56g. GN’s collection id 09PKOcm01.
Taken in direct sunlight. Stereo pair. (Author: Gerhard Niklasch)
-
Olivine series, Forsterite var.Peridot with Calcite; Sapat Gali (Soppat), Kohistan, Pakistan.
50x35x33mm, 56g. GN’s collection id 09PKOcm01.
Taken in direct sunlight. Stereo pair. (Author: Gerhard Niklasch)
-
Olivine series, Forsterite var.Peridot with Calcite; Sapat Gali (Soppat), Kohistan, Pakistan.
50x35x33mm, 56g. GN’s collection id 09PKOcm01.
Taken in direct sunlight. (Author: Gerhard Niklasch)
-
Olivine series, Forsterite var.Peridot with Calcite; Sapat Gali (Soppat), Kohistan, Pakistan.
50x35x33mm, 56g. GN’s collection id 09PKOcm01.
Taken in direct sunlight. (Author: Gerhard Niklasch)
-
Olivine, var. peridot, St John’s Island, Egypt, 2 x 1.1 x 0.6 cm (Author: Jim)
-
Ollisdal Geo, Duirinish, Isle of Skye, Scotland, UK
Photo (courtesy of D.I Green) of me trying to get across the steep bit. I retreated as I was in danger of getting wet and it was a long walk back to the car ! Photo taken same day as the previous stilbite specimen was collected in May 1996. (Author: Mike Wood)
-
Olmiite
N’Chwaning II Mine, Kuruman, N. Cape Prov., South Africa
4.0 x 6.0 cm
Drusy, colorless calcite with a 1.9 cm group of lustrous, peach-colored olmiite and small white spherical masses of oyelite. (Author: crosstimber)
-
Olmiite
N’Chwaning Mine, Kalahari Manganese Fields, Northern Cape Province, South Africa
2.5 x 2.4 cm (Author: Don Lum)
-
Olmiite
N’Chwaning Mine, Kalahari Manganese Fields, Northern Cape Province, South Africa
2.5 x 2.4 cm (Author: Don Lum)
-
Olmiite with Bultfonteinite
Mina N'Chwaning II, Zona minera N'Chwaning, Kuruman, Kalahari manganese field (KMF), Provincia Septentrional del Cabo, Sudáfrica
100 x 40 x 20 mm (Autor: Rob Schnerr) -
Olmiite with Bultfonteinite
Mina N'Chwaning II, Zona minera N'Chwaning, Kuruman, Kalahari manganese field (KMF), Provincia Septentrional del Cabo, Sudáfrica
100 x 40 x 20 mm (Autor: Rob Schnerr) -
Olmiite with Bultfonteinite
Mina N'Chwaning II, Zona minera N'Chwaning, Kuruman, Kalahari manganese field (KMF), Provincia Septentrional del Cabo, Sudáfrica
100 x 40 x 20 mm (Autor: Rob Schnerr) -
Olmiite, Calcite
N’Chwaning II Mine, Kalahari Manganese Fields, South Africa
4.2 x 3.3 cm (Author: Don Lum)
-
Olmiite, Calcite
Mina N'Chwaning II, Zona minera N'Chwaning, Kuruman, Kalahari manganese field (KMF), Provincia Septentrional del Cabo, Sudáfrica
30mm x 30mm x 20mm (Autor: Don Lum) -
Olmiite
Mina N'Chwaning II, Zona minera N'Chwaning, Kuruman, Kalahari manganese field (KMF), Provincia Septentrional del Cabo, Sudáfrica
1.8 x 2.0 cm (Autor: crosstimber) -
Olmiite
Zona minera N'Chwaning, Kuruman, Kalahari manganese field (KMF), Provincia Septentrional del Cabo, Sudáfrica
4.1 cm (Autor: Nunzio) -
Olmiite
Mina N'Chwaning II, Zona minera N'Chwaning, Kuruman, Kalahari manganese field (KMF), Provincia Septentrional del Cabo, Sudáfrica
3.6 x 4.7 cm (Autor: crosstimber) -
Olmiite
Mina N'Chwaning II, Zona minera N'Chwaning, Kuruman, Kalahari manganese field (KMF), Provincia Septentrional del Cabo, Sudáfrica
5.1 x 3.7 cm (Autor: am mizunaka) -
Olmiite
Mina N'Chwaning II, Zona minera N'Chwaning, Kuruman, Kalahari manganese field (KMF), Provincia Septentrional del Cabo, Sudáfrica
11.5 x 7.5 cm (Autor: am mizunaka) -
Olmiite
Mina N'Chwaning II, Zona minera N'Chwaning, Kuruman, Kalahari manganese field (KMF), Provincia Septentrional del Cabo, Sudáfrica
40 x 33 mm (Autor: Sante Celiberti) -
Olmiite
Mina N'Chwaning II, Zona minera N'Chwaning, Kuruman, Kalahari manganese field (KMF), Provincia Septentrional del Cabo, Sudáfrica
26 x 23 x 21 mm (Autor: TamaHiguchi) -
Olshanskyite and Roweite
Mina Shijiangshan, Aldea Shijiangshan, Yinwu, Linxi, Ulanhad League, Región Autónoma Mongolia Interior, China
5.4 x 4.1 cm (Autor: Michael Shaw) -
Olshanskyite with Andradite, Wurtzite and Galena
Mina Shijiangshan, Aldea Shijiangshan, Yinwu, Linxi, Ulanhad League, Región Autónoma Mongolia Interior, China
103 x 100 x 57 mm (Autor: GneissWare) -
Olshanskyite with Andradite, Wurtzite and Galena
Mina Shijiangshan, Aldea Shijiangshan, Yinwu, Linxi, Ulanhad League, Región Autónoma Mongolia Interior, China
103 x 100 x 57 mm (Autor: GneissWare) -
Olshanskyite with Roweite and Andradite
Mina Shijiangshan, Aldea Shijiangshan, Yinwu, Linxi, Ulanhad League, Región Autónoma Mongolia Interior, China
Specimen size: 7.5 × 4.6 × 3.4 cm (Autor: Jordi Fabre) -
olshanskyite xrd.jpg (Author: Cesar M. Salvan)
-
Olshanskyite
Mina Shijiangshan, Aldea Shijiangshan, Yinwu, Linxi, Ulanhad League, Región Autónoma Mongolia Interior, China
FOV 1.5 cm (Autor: Cesar M. Salvan) -
Olshanskyite
Mina Shijiangshan, Aldea Shijiangshan, Yinwu, Linxi, Ulanhad League, Región Autónoma Mongolia Interior, China
FOV 1.5 cm (Autor: Cesar M. Salvan) -
Olshanskyite
Mina Shijiangshan, Aldea Shijiangshan, Yinwu, Linxi, Ulanhad League, Región Autónoma Mongolia Interior, China
FOV 1.5 cm (Autor: Cesar M. Salvan) -
Olshanskyite
Mina Shijiangshan, Aldea Shijiangshan, Yinwu, Linxi, Ulanhad League, Región Autónoma Mongolia Interior, China
FOV 1.5 cm (Autor: Cesar M. Salvan) -
Olshanskyite
Mina Shijiangshan, Aldea Shijiangshan, Yinwu, Linxi, Ulanhad League, Región Autónoma Mongolia Interior, China
3,5 x 3 cm (Autor: Volkmar Stingl) -
Olshanskyite
Mina Shijiangshan, Aldea Shijiangshan, Yinwu, Linxi, Ulanhad League, Región Autónoma Mongolia Interior, China
3,5 x 3 cm (Autor: Volkmar Stingl) -
olv01.jpg (Author: Tobi)
-
olvXL1.jpg (Author: Tobi)
-
olvXL2.jpg (Author: Tobi)
-
olvXL3.jpg (Author: Tobi)
-
Omphacite
Silberbach, Hof, Bavaria, Germany
sample width: 5 cm
Old material with intergrown pyrope crystals. Ex Bergakademie Freiberg. Type locality. (Author: Andreas Gerstenberg)
-
Omphacite
Bric Vert, Quincinetto, Provincia Ciudad metropolitana de Turín, Piamonte (Piemonte), Italia
92 x 73 mm (Autor: Sante Celiberti) -
Omphacite
Bric Vert, Quincinetto, Provincia Ciudad metropolitana de Turín, Piamonte (Piemonte), Italia
92 x 73 mm (Autor: Sante Celiberti) -
On a base of cubic Fluorite of honey yellow color, very bright and partially covered by little crystals of Barite, grows the Calcite crystals, doubly terminated and with dominant very acute scalenohedron faces.
Moscona Mine (Author: Joan Rosell)
-
On a matrix of cleavelandite stands a stunning prismatic, peach coloured topaz measuring 28mm x 29mm and 40mm tall. from Pakistan, Northern Areas, Skardu, Yunu, Shigar Valley
Size 100 x 50 x 58 mm (Author: olelukoe)
-
On my way back to my bivi place, crossing the Lairig Ghru for the second time. At least the cloud has gone, revealing a much greener vista, looking south down the valley where the river Dee flows. (Author: Mike Wood)
-
On my way home on a remote farm road. (Author: Pierre Joubert)
-
On my way up. (Author: Pierre Joubert)
-
On occasion I have been known to build gardens and this stuff came in by the truckload so I used it everywhere. The slabs I cut this from are from India. Im not 100% on what it is, I thought maybe Manganese? (Author: nurbo)
-
On our way to dig for crystals, we encounter scenery like this. (Author: Pierre Joubert)
-
On the other side is a vug with a couple of Aragonites to 0.9 cm in it. (Author: nurbo)
-
On the road back home; mountain scenery somewhere just outside Worcester(not UK but SA) (Author: Pierre Joubert)
-
ON THE ROAD TO THE MILPILLAS MINE
LOCATION
The Milpillas Copper Mine, also known as La Parreña Mine, is located in the Santa Cruz Municipality of Sonora. Sonora is a large state located in northwestern Mexico. It borders the U.S. states of Arizona and New Mexico to the north, the Mexican states of Baja California to the west, Chihuahua to the east, and Sinaloa to the south. Its western edge lies along the Gulf of California (Sea of Cortez). Much of the state is covered by the Sonoran Desert.
The Milpillas Copper Mine is located approximately 40 kilometers (25 miles) south of the US-Mexico border, positioning it as an integral part of a larger, cross-border mining region deeply connected to Arizona’s long-standing mining industry. Specifically, it lies about 60 kilometers (37 miles) southwest of Bisbee, Arizona, a town renowned for its Copper mining history. Tucson, a significant city in Southern Arizona, is roughly 188 kilometers (117 miles) to the north-northwest.
Closer to home, the Milpillas mine is situated about 20 kilometers northwest of Cananea, a significant Mexican mining center with a population of 30,000. Cananea’s economy heavily relies on the large Buena Vista del Cobre mine. The closest settlement to the Milpillas Mine (La Parreña) is the small village of Milpillas, with just over 170 residents. Other nearby communities, such as Cuitaca and Vicente Guerrero, underscore the area’s rural and mining-focused character. Access to the Milpillas site from Cananea involves navigating a mix of paved, secondary, and unpaved mining roads.
BRIEF HISTORY
The Milpillas Mine in Sonora, Mexico, discovered in 1978, faced an uphill battle for development. For decades, it lay dormant, hampered by low Copper prices and significant geological hurdles, most notably being buried beneath 250 meters of water-saturated alluvium. However, extensive exploration efforts by Minera Cuicuilco and Industrias Peñoles between the 1980s and 2001 ultimately confirmed substantial high-grade Copper reserves.
Underground mining operations for Copper finally began in 2006. Milpillas quickly gained fame not just for its Copper, but also for its world-class mineral specimens, particularly the striking "electric blue" Azurite crystals, Malachite, and Cuprite found in its supergene enrichment zones. Despite its geological riches, operations were indefinitely suspended in 2020 due to high costs and falling Copper prices. Fortunately, mining activities resumed in June 2022 and are ongoing.
Geological Setting and Mineralization
The Milpillas mine is discreetly situated within the Cuitaca Graben, a prominent north-south trending extensional basin within Sonora’s Basin and Range province. The valuable Copper deposit was initially concealed beneath younger layers of Tertiary gravels and Quaternary alluvium. The underlying geology primarily consists of volcaniclastic rocks from the Laramide Mesa Formation and older Jurassic Henrietta Formation, which have been intruded by monzonitic to quartz monzonitic porphyry stocks. High-grade supergene enrichment, a process that generated the mine’s renowned Azurite, Malachite, and other secondary Copper minerals, occurred within these host rocks at depths ranging from 150 to 750 meters below the surface.
Climate, Flora, and Fauna
Milpillas experiences Sonora’s characteristic arid to semi-arid climate, set within a Basin and Range topography of alternating mountain ranges and expansive valleys. While higher elevations near Cananea support scattered pine-oak forests, Milpillas’ immediate vicinity is a typical desert environment at lower elevations. The flora is well-adapted to drought, including various cacti (such as nopal and barrel cactus), mesquite trees, creosote bush, and resilient desert grasses and shrubs. The fauna, equally suited to these conditions, includes coyotes, diverse rodents, and numerous reptile species, such as snakes and lizards. (Author: silvia)
-
On the way back home, Riana took this picture while I was driving. (Author: Pierre Joubert)
-
On the way back. (Author: Pierre Joubert)
-
On the way back. (Author: Pierre Joubert)
-
Once on the glacier (Mer de Glace) it is several kilometres walk to some more ladders, to get off the glacier and up the path to the Courvercle Hut below the Aiguille du Moine. The glacier is ’dry’ this low down at this time of year so is mostly easy to walk on - you can see the objective dangers (crevasses) and avoid them. A refreshing cold breeze blows down the valley, otherwise it would be hot under the summer sun.
Photo scanned from slide. (Author: Mike Wood)
-
One day at the mine, blue sky, breezy, and sunshine. (Author: vic rzonca)
-
One half of my mineral display.
Cabinet is 80cm x 50cm.
Six (2W) LED (4100K) strips. (Author: Mike Wood)
-
One more for the guys who toiled on the square set and single jack. (Author: vic rzonca)
-
One of about 3 pockets that I found on the day. (Author: Pierre Joubert)
-
One of my amethists from the railroad (it was a present from Joan Carles, the photo is not good, it was made by me, sorry :( , it has 2cm width) (Author: Sergio)
-
One of my collecting chums with a large calcite boat. (Author: vic rzonca)
-
One of my favorites. 2 dark red / cranberry tourmalines on lepidolite matrix. Both of these have gemmy tops, and perfect terminations. The smaller xtal has one repair. This piece is from Xanda Mine, Virgem de Lapa, Minas Gerias Brazil. Dimensions are 8.9 x 5.1 x 5 cm and weight is 105 grams. One picture is in the case with backlight. (Author: VRigatti)
-
One of my favourite wild flowers; a vine with beautiful flowers. (Author: Pierre Joubert)
-
One of my favourites, I call this the "Lighthouse". (Author: Gail)
-
One of my showcases of Tuscan minerals, about to collapse. (Author: Sante Celiberti)
-
One of my showcases of world-wide minerals. Specimens don’t make their figure because of the overcrowding. (Author: Sante Celiberti)
-
One of our 2 RPS’s (royal pavement specials), Yogi (reminding one of Yogi bear, with his short ear stubs), who was rescued about ten years ago, from a squatter camp after both his ears had been cut off. He is a very happy dog and just as addicted to the mountains, just like us. (Author: Pierre Joubert)
-
One of the areas where I dug. (Author: Pierre Joubert)
-
One of the cleaned specimens; sorry no size. (Author: Pierre Joubert)
-
One of the excelent photos of Christian Rewitzer. An Anatase from Adra, Almería, Spain. (Author: Rewitzer Christian)
-
One of the glass shelfs of the Tsumeb collection. More pictures in the next post (Author: Herman van Dennebroek)
-
One of the many small butterflies of the Western Cape mountains. (Author: Pierre Joubert)
-
One of the nicer specimens of the find of Rhodochrosites and Kentrolites from Rivet Quarry, Peyrebrune, France. (Author: Jordi Fabre)
-
One of the railroad new outcrops. Left: medium to coarse grained leucogranite which has yielded crystallized minerals. Lower right: Miocene arkoses. Upper right: Miocene basalt lava flows, without mineralogical interest. (Author: davidsoler)
-
One of the shelves in the Waddell Case, north wall. (Author: Ed Huskinson)
-
One of the smaller crystals (~ 15 mm) that shows how the duftite is intergrown with the calcite. (Author: Tobi)
-
One of the specimens I removed. (Author: Pierre Joubert)
-
One of the specimens I removed. (Author: Pierre Joubert)
-
One of the specimens I removed. (Author: Pierre Joubert)
-
One of the specimens she removed. (Author: Pierre Joubert)
-
One of the steepest parts of the road in the distance. Here is where we leave the valley floor. (Author: John S. White)
-
One of the work areas. The larger pocket zone is low on the face, but many smaller, 10 cm. holes are above. The floor of the bench is the bottom of the formation and is barren. (Author: vic rzonca)
-
One of these wonderful Chalcopyrites with Siderite
Specimen Size: 12.5 × 6.9 × 5.3 cm.
Main crystal size: 1 × 0.9 cm.
Locality: Hezhang County, Bijie Prefecture, Guangxi, China
Mined in 2012 (Author: Jordi Fabre)
-
One of twenty large boulders (Author: Glenn Rhein)
-
One side of amethyst I acquired while there. It is 6.5 cm across. (Author: John S. White)
-
One we found last weekend with very small green facet grade on the right side..not enough to cut anything..(we didn’t find much this day as we were trying some sample digging) (Author: Jason)
-
Oneillite
Cantera Poudrette, Mont Saint-Hilaire, La Vallée-du-Richelieu RCM, Montérégie, Québec, Canadá
FOV = 4mm (Autor: Doug) -
Onoratoite
Le Cetine Mine, Chiusdino, Siena, Tuscany, Italy
fov 1.5 mm (Author: Rewitzer Christian)
-
Opal
Erongo Mountain, Namibia
2cm x 1cm x .2cm
Opal (UV light) (Author: Mark Ost)
-
Opal
Erongo Mountain, Namibia
2cm x 1cm x .2 cm
Opal (indirect sunlight) (Author: Mark Ost)
-
Opal
Erongo Mountain, Namibia
2cm x 1 cm x .2 cm
Opal (tungsten light) (Author: Mark Ost)
-
Opal
Fornaccia, Fornovolasco, Vergemoli, Apuan Alps, Lucca Province, Tuscany, Italy
6.84 mm blue-light Opal concrections (Author: Matteo_Chinellato)
-
Opal
Koroit, Queensland, Australia
6.8 x 4.1 cm and 6.2 x 2.8 cm (Author: Don Lum)
-
Opal
Koroit, Queensland, Australia
6.8 x 4.1 cm and 6.2 x 2.8 cm (Author: Don Lum)
-
Opal
Koroit, Queensland, Australia
6.8 x 4.1 cm and 6.2 x 2.8 cm (Author: Don Lum)
-
Opal
Koroit, Queensland, Australia
6.8 x 4.1 cm and 6.2 x 2.8 cm (Author: Don Lum)
-
Opal
Queensland, Australia
15 x 6.3 x 5 cm (Author: Don Lum)
-
Opal
Queensland, Australia
15 x 6.3 x 5 cm (Author: Don Lum)
-
Opal
Queensland, Australia
15 x 6.3 x 5 cm
Cutting boulder opal can be really messy with the ironstone turning to mud under the grinding wheels. (Author: Don Lum)
-
Opal
Queensland, Australia
15 x 6.3 x 5 cm (Author: Don Lum)
-
Opal
Queensland, Australia
15 x 6.3 x 5 cm
ex-Bill Rudner.
Way back when, a person could stop by Chris Wright’s place in Hot Springs and go through a bin with boulder opal rough. It was sold by the pound. That was okay because about 99.99% of it was ironstone matrix. I suspect that possibly as many as a dozen people have high-graded it before it got to the bin but every now and again Chris would put back a piece for that special person. Unfortunately, more often than not, I was usually not that person. (Author: Don Lum)
-
Opal
Quilpie, Queensland, Australia
4.2 x 3.9 cm (Author: Don Lum)
-
Opal
Quilpie, Queensland, Australia
4.2 x 3.9 cm
Boulder Opal (Author: Don Lum)
-
Opal
Quilpie, Queensland, Australia
4.2 x 3.9 cm
Boulder Opal (Author: Don Lum)
-
Opal
Unknown location in Mexico
1cm x .5cm x1cm
Opal (UV light) (Author: Mark Ost)
-
Opal
Unknown location in Mexico
1cm x .5 cmx 1cm
Opal (indirect sunlight) (Author: Mark Ost)
-
Opal
Unknown location in Mexico
1cm x .5 cm x 1cm
Opal (tungsten light) (Author: Mark Ost)
-
Opal
Yowah, Queensland, Australia
6.5 x 3.5 cm
Yowah Nut (Author: Don Lum)
-
Opal
Yowah, Queensland, Australia
6.5 x 3.5 cm
Yowah Nut (Author: Don Lum)
-
Opal
Yowah, Queensland, Australia
6.5 x 4 cm
Yowah Nut (Author: Don Lum)
-
Opal
Yowah, Queensland, Australia
6.5 x 4 cm
Yowah Nut (Author: Don Lum)
-
Opal (Precious Opal)
Quilpie, Condado Quilpie, Queensland, Australia
85 x 50 x 45 mm (Autor: Rob Schnerr) -
Opal (var. hyalite), Schorl (Tourmaline Group), Quartz (var. smokey)
Región Erongo, Namibia
50mm X 37mm X 37mm (Autor: steven calamuci)Opal (var. hyalite), Schorl (Tourmaline Group), Quartz (var. smokey)
-
Opal (variety fiorite)
Castel del Piano (Monte Amiata), Provincia Grosseto, Toscana, Italia
58 x 18 mm (Autor: Sante Celiberti) -
Opal (variety fiorite)
Castel del Piano (Monte Amiata), Provincia Grosseto, Toscana, Italia
17 x 8 cm (Autor: Sante Celiberti) -
Opal (variety Fire Opal)
San Juan del Río, Querétaro, México
8 x 4 cm (Autor: Volkmar Stingl) -
Opal (variety fire opal)
Querétaro, México
3 x 2 cm (Autor: Volkmar Stingl) -
Opal (variety fire opal)
Magdalena, Municipio Magdalena, Jalisco, México
2 x 1,5 cm (Autor: Volkmar Stingl) -
Opal (variety forcherite)
Breitenau, Hochlantsch, Distrito Bruck-Mürzzuschla, Estiria/Steiermark, Austria
3,5 x 2 cm (Autor: Volkmar Stingl) -
Opal (variety Hyalite)
Square Top Mt., Queensland, Australia
5.5x4.5 cm (Author: Greg Lilly)
-
Opal (variety hyalite) on Fluorite
Monte Erongo, Usakos, Región Erongo, Namibia
94mm x 51mm x 68mm (Autor: Heimo Hellwig)Opal (variety hyalite) on Fluorite
Monte Erongo, Usakos, Región Erongo, Na -
Opal (variety hyalite) on Fluorite
Monte Erongo, Usakos, Región Erongo, Namibia
94mm x 51mm x 68mm (Autor: Heimo Hellwig)Opal (variety hyalite) on Fluorite
Monte Erongo, Usakos, Región Erongo, Na -
Opal (variety hyalite) on smoky quartz.
Erongo mountains; Namibia
60 x 42 x 24 mm (Author: Pierre Joubert)
-
Opal (variety hyalite) on smoky quartz.
Erongo mountains; Namibia
60 x 42 x 24 mm
The hyalite opal (32 x 22 mm) has an even better colour in person, very much like jelly. (Author: Pierre Joubert)
-
Opal (variety hyalite) with Aragonite
Tarcal, Montes Eperjes-Tokaj, Borsod-Abaúj-Zemplén, Hungría
Specimen size: 6.6 × 3.6 × 3.8 cm (Autor: Jordi Fabre)Opal (variety hyalite) with Aragonite
Tarcal, Montes Eperjes-Tokaj, Borsod-Abaúj-Zemplén, -
Opal (variety hyalite), Chalcedony and Quartz
Monok, Montes Zemplén, Distrito Szerencs, Borsod-Abaúj-Zemplén, Hungría
Detail. FOV 10mm. (Autor: Firmo Espinar) -
Opal (variety hyalite), Chalcedony and Quartz
Monok, Montes Zemplén, Distrito Szerencs, Borsod-Abaúj-Zemplén, Hungría
63 mm x 52 mm x 50 mm (Autor: Firmo Espinar) -
Opal (variety hyalite), Chalcedony and Quartz
Monok, Montes Zemplén, Distrito Szerencs, Borsod-Abaúj-Zemplén, Hungría
63 mm x 52 mm x 50 mm (Autor: Firmo Espinar) -
Opal (variety hyalite)
Zacatecas, México
crystal : 3 cm (Autor: Benj) -
Opal (variety hyalite)
Zacatecas, México
FOV 8 mm (Autor: Firmo Espinar) -
Opal (variety hyalite)
Zacatecas, México
23mm x 22mm x 15mm (Autor: Firmo Espinar) -
Opal (variety hyalite)
Zacatecas, México
23mm x 22mm x 15mm (Autor: Firmo Espinar) -
Opal (variety hyalite)
Zacatecas, México
23mm x 22mm x 15mm (Autor: Firmo Espinar) -
Opal (variety hyalite)
Zacatecas, México
Detail FOV=11 mm (Autor: Firmo Espinar) -
Opal (variety hyalite)
Zacatecas, México
25mm x 24mm x 15mm (Autor: Firmo Espinar) -
Opal (variety hyalite)
Zacatecas, México
25mm x 24mm x 15mm (Autor: Firmo Espinar) -
Opal (variety hyalite)
Valeč, Doupov, Región Karlovy Vary, Bohemia, República Checa
5 x 3 cm (Autor: Volkmar Stingl) -
Opal (variety hyalite)
Valeč, Doupov, Región Karlovy Vary, Bohemia, República Checa
5 x 3 cm (Autor: Volkmar Stingl) -
Opal (variety hyalite)
Valeč, Doupov, Región Karlovy Vary, Bohemia, República Checa
4 x 3,5 cm (Autor: Volkmar Stingl) -
Opal (variety hydrophane)
Tsehay Mewcha, Wegeltena, Distrito Delanta, Zona Semien Wollo (Zona Wollo Norte), Región Amhara, Etiopía
1,3 x 1 cm (Autor: Volkmar Stingl) -
Opal (variety hydrophane)
Tsehay Mewcha, Wegeltena, Distrito Delanta, Zona Semien Wollo (Zona Wollo Norte), Región Amhara, Etiopía
1,3 x 1 cm (Autor: Volkmar Stingl) -
Opal (variety menilite)
Yacimiento de ópalos, Embalse de Camarillas, Agramón, Hellín, Comarca Campos de Hellín, Albacete, Castilla-La Mancha, España
34 mm x 52 mm x 20 mm (Autor: Firmo Espinar) -
Opal (variety menilite)
Embalse de Camarillas, Agramón, Hellín, Comarca Campos de Hellín, Albacete, Castilla-La Mancha, España
75 mm x 50 mm x 18 mm (Autor: Firmo Espinar) -
Opal (variety menilite)
Yacimiento de ópalos, Embalse de Camarillas, Agramón, Hellín, Comarca Campos de Hellín, Albacete, Castilla-La Mancha, España
62 mm x 26 mm x 9 mm (Autor: Firmo Espinar) -
Opal from Pedro II, Piauí, Brasil
11,0 cm X 4,5 cm X 6,5 cm (Author: silvio steinhaus)
-
Opal on Phillipsite
Roca-Neyra, Perrier, Distrito Issoire, Departamento Puy-de-Dôme, Auvergne-Rhône-Alpes, Francia
fov 1.70 mm (Autor: ploum) -
Opal pseudomorph after Ikaite
White Chalk Cliffs, New South Wales, Australia
7.0 x 6.7 x 4.2 cm
ex-Jim Clark (Author: Don Lum)
-
Opal pseudomorph after Ikaite
White Chalk Cliffs, New South Wales, Australia
7.0 x 6.7 x 4.2 cm
ex-Jim Clark (Author: Don Lum)
-
Opal pseudomorph after Ikaite
White Chalk Cliffs, New South Wales, Australia
7.0 x 6.7 x 4.2 cm
ex-Jim Clark (Author: Don Lum)
-
Opal var hyalite
Zacatecas, México
4.1 x 2.8 x 2.1 cm (Autor: Don Lum) -
Opal var Shell Opal
Australia
11 x 7.5 cm
Belemnite (Author: Don Lum)
-
Opal var Shell Opal
Australia
11 x 7.5 cm
Belemnite (Author: Don Lum)
-
Opal var Shell Opal
Australia
11 x 7.5 cm
Belemnite (Author: Don Lum)
-
Opal var. hyalite
Valec, Karlovy Vary Region, Bohemia, Czech Republic
7.0 x 8.1 cm
Glassy botryoidal hyalite opal on a shard of matrix. The opal exhibits a strong green fluorescence under SW light. (Author: crosstimber)
-
Opal var. menilite
Yacimiento de ópalos, Embalse de Camarillas, Agramón, Hellín, Comarca Campos de Hellín, Albacete, Castilla-La Mancha, España
3.0 cm x 4.9 cm (Autor: Michael Shaw) -
Opal with Orpiment inclusions (variety forcherite)
Holzbrücken, Ingering, Knittelfeld, Distrito Murtal, Estiria/Steiermark, Austria
8,5 x 6 cm (Autor: Volkmar Stingl) -
Opal with Orpiment inclusions (variety forcherite)
Holzbrücken, Ingering, Knittelfeld, Distrito Murtal, Estiria/Steiermark, Austria
8,5 x 6 cm (Autor: Volkmar Stingl) -
Opal,
Quilpie, Condado Quilpie, Queensland, Australia
10 x 5 cm (Autor: Sante Celiberti) -
Opal-(AN)
Tepetate, Municipio Villa de Arriaga, San Luis Potosí, México
5.0 x 5.2 cm (Autor: crosstimber) -
Opal-(AN)
Tepetate, Municipio Villa de Arriaga, San Luis Potosí, México
5.0 x 5.2 cm (Autor: crosstimber) -
Opal-AN (variety hyalite) with Fluorapatite (variety staffelite)
Valeč, Doupov, Región Karlovy Vary, Bohemia, República Checa
75 x 48 x 55 mm (Autor: Rob Schnerr)Opal-AN (variety hyalite) with Fluorapatite (variety staffelite)
Valeč, Doupov, Región Karl -
Opal-AN (variety hyalite)
Zacatecas (Ciudad), Municipio Zacatecas, Zacatecas, México
45 mm x 21 mm x 17 mm (Autor: Firmo Espinar) -
Opal-AN (variety hyalite)
Zacatecas (Ciudad), Municipio Zacatecas, Zacatecas, México
45 mm x 21 mm x 17 mm (Autor: Firmo Espinar) -
Opal-AN
Valeč, Doupov, Región Karlovy Vary, Bohemia, República Checa
6.1 x 4.3 x 3.8 cm (Autor: Don Lum) -
Opal-AN
Valeč, Doupov, Región Karlovy Vary, Bohemia, República Checa
6.1 x 4.3 x 3.8 cm (Autor: Don Lum) -
Opal-AN
Cantera Kopasz Hill, Tarcal, Montes Eperjes-Tokaj, Borsod-Abaúj-Zemplén, Hungría
2.0 cm x 2.9 cm (Autor: Michael Shaw) -
Opal-AN
Castel del Piano (Monte Amiata), Provincia Grosseto, Toscana, Italia
10,5 x 7,5 cm (Autor: Sante Celiberti) -
Opal-AN
Castel del Piano (Monte Amiata), Provincia Grosseto, Toscana, Italia
10,5 x 7,5 cm (Autor: Sante Celiberti) -
Opal-AN
Tarcal, Montes Eperjes-Tokaj, Borsod-Abaúj-Zemplén, Hungría
35 x 25 mm (Autor: Sante Celiberti) -
Opal-CT (variety lussatite) after fossil (Helix ramondi)
Mina Les Rois, Mur-sur-Allier, Pont-du-Château, Distrito Clermont-Ferrand, Departamento Puy-de-Dôme, Auvergne-Rhône-Alpes, Francia
92 mm x 45 mm x 39 mm (Autor: Don Lum) -
Opal-CT (variety lussatite)
Lussat, Aigueperse, Riom, Departamento Puy-de-Dôme, Auvergne-Rhône-Alpes, Francia
12 x 10 x 10 mm (Autor: Rob Schnerr) -
Opal. A kind of Chrystmas opals (lol). Agramón. Albacete. Castilla La Mancha. Spain. 7 cm and 4 cm (Author: nimfiara)
-
Opal. Agramón. Albacete. Castilla La Mancha. Spain. 8 cm (Author: nimfiara)
-
Opal. Cabo de Gata. Almería. Andalusia. Spain. 8 cm (Author: nimfiara)
-
Opal. Cabo de Gata. Almeria. Andalusia. Spain. 7 cm (Author: nimfiara)
-
Opal. Cabo de Gata. Almería. Andalusia. Spain. 7 cm (Author: nimfiara)
-
Opal. Galera. Granada. Andalusia. Spain. 6 cm. (Author: nimfiara)
-
Opal
from Virgin Valley, Nevada,USA
1.0X0.9X0.3 cubic cm (Author: pro_duo)
-
Opal
Mina La Carbonera, Tequisquiapán, Querétaro, Mexico
84x82x68mm (Author: Carlos M.)
-
Opal
Yacimiento de ópalos, Embalse de Camarillas, Agramón, Hellín, Comarca Campos de Hellín, Albacete, Castilla-La Mancha, España
33mm x 9mm x 8mm (Autor: Firmo Espinar) -
Opal
Zacatecas, México
FOV of 34.16mm (Autor: ofarcis) -
Opal
Zacatecas, México
FOV of 34.16mm (Autor: ofarcis) -
Opal
Yacimiento de ópalos, Embalse de Camarillas, Agramón, Hellín, Comarca Campos de Hellín, Albacete, Castilla-La Mancha, España
106mm x 55mm x 12mm (Autor: Firmo Espinar) -
Opal
Quilpie, Condado Quilpie, Queensland, Australia
43 x 36 mm (Autor: Sante Celiberti) -
Opal
Caux, Cantón Pézenas, Dstrito Béziers, Hérault, Occitanie, Francia
fov 6 mm (Autor: ploum) -
Opal
Durango, México
(Autor: Gail) -
Opal
Durango, México
25mm (Autor: Gail) -
Opal
Caux, Cantón Pézenas, Dstrito Béziers, Hérault, Occitanie, Francia
fov 5.5 mm (Autor: ploum) -
Opal
Quilpie, Condado Quilpie, Queensland, Australia
43 x 36 mm (Autor: Sante Celiberti) -
Opal
Yacimiento de ópalos, Embalse de Camarillas, Agramón, Hellín, Comarca Campos de Hellín, Albacete, Castilla-La Mancha, España
38mm x 30mm x 10mm (Autor: Firmo Espinar) -
Opal
Yacimiento de ópalos, Embalse de Camarillas, Agramón, Hellín, Comarca Campos de Hellín, Albacete, Castilla-La Mancha, España
26 mm x 15 mm x 8 mm (Autor: Firmo Espinar) -
Opal
Yacimiento de ópalos, Embalse de Camarillas, Agramón, Hellín, Comarca Campos de Hellín, Albacete, Castilla-La Mancha, España
28mm x 13mm x 6mm (Autor: Firmo Espinar) -
Opal
Yacimiento de ópalos, Embalse de Camarillas, Agramón, Hellín, Comarca Campos de Hellín, Albacete, Castilla-La Mancha, España
32mm x 35mm x 8mm (Autor: Firmo Espinar) -
Opal
Yacimiento de ópalos, Embalse de Camarillas, Agramón, Hellín, Comarca Campos de Hellín, Albacete, Castilla-La Mancha, España
49mm x 40mm x 12mm (Autor: Firmo Espinar) -
Opal
Yacimiento de ópalos, Embalse de Camarillas, Agramón, Hellín, Comarca Campos de Hellín, Albacete, Castilla-La Mancha, España
14mm x 43mm x 12mm (Autor: Firmo Espinar) -
Opal
Yacimiento de ópalos, Embalse de Camarillas, Agramón, Hellín, Comarca Campos de Hellín, Albacete, Castilla-La Mancha, España
46mm x 48mm x 19mm (Autor: Firmo Espinar) -
Opal
Yacimiento de ópalos, Embalse de Camarillas, Agramón, Hellín, Comarca Campos de Hellín, Albacete, Castilla-La Mancha, España
46mm x 48mm x 19mm (Autor: Firmo Espinar) -
Opal
Yacimiento de ópalos, Embalse de Camarillas, Agramón, Hellín, Comarca Campos de Hellín, Albacete, Castilla-La Mancha, España
16mm x 31mm x 10mm (Autor: Firmo Espinar) -
Opal
Yacimiento de ópalos, Embalse de Camarillas, Agramón, Hellín, Comarca Campos de Hellín, Albacete, Castilla-La Mancha, España
56mm x 54mm x 12mm (Autor: Firmo Espinar) -
Opal
Yacimiento de ópalos, Embalse de Camarillas, Agramón, Hellín, Comarca Campos de Hellín, Albacete, Castilla-La Mancha, España
32mm x 26mm x 15mm (Autor: Firmo Espinar) -
Opal
Yacimiento de ópalos, Embalse de Camarillas, Agramón, Hellín, Comarca Campos de Hellín, Albacete, Castilla-La Mancha, España
68mm x 40mm x 13mm (Autor: Firmo Espinar) -
Opal
Yacimiento de ópalos, Embalse de Camarillas, Agramón, Hellín, Comarca Campos de Hellín, Albacete, Castilla-La Mancha, España
68mm x 40mm x 13mm (Autor: Firmo Espinar) -
Opal
Yacimiento de ópalos, Embalse de Camarillas, Agramón, Hellín, Comarca Campos de Hellín, Albacete, Castilla-La Mancha, España
17mm x 43mm x 12mm (Autor: Firmo Espinar) -
Opal
Yacimiento de ópalos, Embalse de Camarillas, Agramón, Hellín, Comarca Campos de Hellín, Albacete, Castilla-La Mancha, España
17mm x 43mm x 12mm (Autor: Firmo Espinar) -
Opal
Yacimiento de ópalos, Embalse de Camarillas, Agramón, Hellín, Comarca Campos de Hellín, Albacete, Castilla-La Mancha, España
40mm x 68mm x 15mm (Autor: Firmo Espinar) -
Opal
Yacimiento de ópalos, Embalse de Camarillas, Agramón, Hellín, Comarca Campos de Hellín, Albacete, Castilla-La Mancha, España
28mm x 33mm x 11mm (Autor: Firmo Espinar) -
Opal
Yacimiento de ópalos, Embalse de Camarillas, Agramón, Hellín, Comarca Campos de Hellín, Albacete, Castilla-La Mancha, España
28mm x 40mm x 20mm (Autor: Firmo Espinar) -
Opal
Yacimiento de ópalos, Embalse de Camarillas, Agramón, Hellín, Comarca Campos de Hellín, Albacete, Castilla-La Mancha, España
58mm x 35mm x 22mm (Autor: Firmo Espinar) -
Opal
Yacimiento de ópalos, Embalse de Camarillas, Agramón, Hellín, Comarca Campos de Hellín, Albacete, Castilla-La Mancha, España
60mm x 42mm x 30mm (Autor: Firmo Espinar) -
Opal
Yacimiento de ópalos, Embalse de Camarillas, Agramón, Hellín, Comarca Campos de Hellín, Albacete, Castilla-La Mancha, España
17mm x 25mm x 12mm (Autor: Firmo Espinar) -
Opal
Yacimiento de ópalos, Embalse de Camarillas, Agramón, Hellín, Comarca Campos de Hellín, Albacete, Castilla-La Mancha, España
18mm x 26mm x 12mm (Autor: Firmo Espinar) -
Opal
Yacimiento de ópalos, Embalse de Camarillas, Agramón, Hellín, Comarca Campos de Hellín, Albacete, Castilla-La Mancha, España
16mm x 34mm x 11mm (Autor: Firmo Espinar) -
Opal
Yacimiento de ópalos, Embalse de Camarillas, Agramón, Hellín, Comarca Campos de Hellín, Albacete, Castilla-La Mancha, España
(Autor: Firmo Espinar) -
Opal
Yacimiento de ópalos, Embalse de Camarillas, Agramón, Hellín, Comarca Campos de Hellín, Albacete, Castilla-La Mancha, España
(Autor: Firmo Espinar) -
Opal
Yacimiento de ópalos, Embalse de Camarillas, Agramón, Hellín, Comarca Campos de Hellín, Albacete, Castilla-La Mancha, España
(Autor: Firmo Espinar) -
Opal
Yacimiento de ópalos, Embalse de Camarillas, Agramón, Hellín, Comarca Campos de Hellín, Albacete, Castilla-La Mancha, España
(Autor: Firmo Espinar) -
Opal
Yacimiento de ópalos, Embalse de Camarillas, Agramón, Hellín, Comarca Campos de Hellín, Albacete, Castilla-La Mancha, España
15mm x 30mm x 9mm (Autor: Firmo Espinar) -
Opal
Yacimiento de ópalos, Embalse de Camarillas, Agramón, Hellín, Comarca Campos de Hellín, Albacete, Castilla-La Mancha, España
26mm x 54mm x 15mm (Autor: Firmo Espinar) -
Opal
Yacimiento de ópalos, Embalse de Camarillas, Agramón, Hellín, Comarca Campos de Hellín, Albacete, Castilla-La Mancha, España
28mm x 58mm x 17mm (Autor: Firmo Espinar) -
Opal
Yacimiento de ópalos, Embalse de Camarillas, Agramón, Hellín, Comarca Campos de Hellín, Albacete, Castilla-La Mancha, España
30mm x 80mm x 10mm (Autor: Firmo Espinar) -
Opal
Yacimiento de ópalos, Embalse de Camarillas, Agramón, Hellín, Comarca Campos de Hellín, Albacete, Castilla-La Mancha, España
14mm x 44mm x 11mm (Autor: Firmo Espinar) -
Opal
Yita Ridge, Menz and Gishe (Menz na Gishe), Región Amhara, Etiopía
87 mm x 84 mm x 75 mm (Autor: Don Lum) -
Opal
Yita Ridge, Menz and Gishe (Menz na Gishe), Región Amhara, Etiopía
87 mm x 84 mm x 75 mm (Autor: Don Lum) -
Opal
Yita Ridge, Menz and Gishe (Menz na Gishe), Región Amhara, Etiopía
87 mm x 84 mm x 75 mm (Autor: Don Lum) -
Opal
Yita Ridge, Menz and Gishe (Menz na Gishe), Región Amhara, Etiopía
87 mm x 84 mm x 75 mm (Autor: Don Lum) -
Opal
Quilpie, Condado Quilpie, Queensland, Australia
3.75 x 3.25 x 1.5 inches (Autor: Chris Wentzell) -
Opal
Monti Pelati, Bettolino, Baldissero Canavese, Provincia Ciudad metropolitana de Turín, Piamonte (Piemonte), Italia
68 x 56 mm (Autor: Sante Celiberti) -
Opal
Zona Debub Wollo (Zona Wollo Sur), Región Amhara, Etiopía
1 cm each one (Autor: Tobi) -
Opal
Quilpie, Condado Quilpie, Queensland, Australia
Specimen size 9 cm (Autor: Tobi) -
Opal
Grupo Minero Sorteo, El Cintado, Cáceres ciudad, Comarca de Cáceres, Cáceres, Extremadura, España
42mm x 42mm x 35mm (Autor: Firmo Espinar) -
Opal
Coober Pedy, Central North, Australia Meridional, Australia
Vial 35 x 17 mm (Autor: Volkmar Stingl) -
Opal
Tsehay Mewcha, Wegeltena, Distrito Delanta, Zona Semien Wollo (Zona Wollo Norte), Región Amhara, Etiopía
16 mm x 10 mm x 6 mm (Autor: Firmo Espinar) -
Opal
Yacimiento de ópalos, Embalse de Camarillas, Agramón, Hellín, Comarca Campos de Hellín, Albacete, Castilla-La Mancha, España
47 mm x 41 mm x 13 mm (Autor: Firmo Espinar) -
Opal
Isla Salina, Islas Eolias, Lípari, Provincia Messina, Sicilia, Italia
1,7 x 1,5 cm (Autor: Volkmar Stingl) -
Opal
Mina la Carbonera, La Trinidad, Municipio Tequisquiapan, Querétaro, México
FoV 2,5 x 2 cm (Autor: Volkmar Stingl) -
Opal
Cantera Case Montanini, Sant'Andrea Bagni, Medesano, Provincia Parma, Emilia-Romagna, Italia
6,5 x 4 cm (Autor: Volkmar Stingl) -
Opal
Cantera Case Montanini, Sant'Andrea Bagni, Medesano, Provincia Parma, Emilia-Romagna, Italia
6,5 x 4 cm (Autor: Volkmar Stingl) -
Opal
Quilpie, Condado Quilpie, Queensland, Australia
5.5 x 5.4 x 2.7 cm (Autor: Michael Shaw) -
Opal
Tsehay Mewcha, Wegeltena, Distrito Delanta, Zona Semien Wollo (Zona Wollo Norte), Región Amhara, Etiopía
3.1 x 1.5 cm (Autor: Michael Shaw) -
Opal
Quilpie, Condado Quilpie, Queensland, Australia
Specimen 9 x 5 cm (Autor: Tobi) -
Opal
Coober Pedy, Central North, Australia Meridional, Australia
Specimen size 3 cm (Autor: Tobi) -
Opal
Coober Pedy, Central North, Australia Meridional, Australia
Specimen size 3 cm (Autor: Tobi) -
Opal
Coober Pedy, Central North, Australia Meridional, Australia
Specimen size 3 cm (Autor: Tobi) -
Opal
Coober Pedy, Central North, Australia Meridional, Australia
Specimen size 3 cm (Autor: Tobi) -
Opal
Coober Pedy, Central North, Australia Meridional, Australia
Specimen size 3 cm (Autor: Tobi) -
Opale is a kind of rarity from the Freiberg district, Erzgebirge, Saxony. The picture shows an 18th century find from the Sonnenwirbel Fundgrube (a rather small mine that was later consolidated with the famous Himmelsfürst mine). 6,5 cm so-called wood opale with label dating by 1780-1810. (Author: Andreas Gerstenberg)
-
Opale
Caux, Cantón Pézenas, Dstrito Béziers, Hérault, Occitanie, Francia
fov 4.5 mm (Autor: ploum) -
Opened, showing the little massive pyrargyrite sample (3 cm) from Gesegnete Bergmannshoffnung mine, Obergruna, Freiberg district, Erzgebirge, Saxony. (Author: Andreas Gerstenberg)
-
opening the calcite pocket more (Author: thecrystalfinder)
-
opening the calcite pocket with first crystal to come out (Author: thecrystalfinder)
-
orange 4 3 11 007.JPG (Author: Glenn Rhein)
-
Orange red alacranite crystals from Wilmsdorfer shaft, Possendorf near Dresden, Saxony. Picture width 2 mm. (Author: Andreas Gerstenberg)
Acceso a Foro FMF
Guía de uso de Galería FMF
