Cassiterite on Muscovite with Beryl and Topaz
Mt. Xuebaoding, Pingwu County, Mianyang Prefecture, Sichuan Province, China
106.0 x 70.0 x 39.0 mm overall
Multiple, highly lustrous black Cassiterite crystals are nestled within a matrix of Muscovite blades to 13 mm forming rosettes. Cassiterite is present as both twinned crystals to 32 x 32 x 25 mm and untwinned crystals to 10 mm. Several clear, lustrous Beryl (v. Goshenite) crystals provide an accent. A small sherry-colored Topaz to 7 mm is nestled within one of the Muscovite rosettes; topaz are rare from this locality. (Author: GneissWare)
Dimensiones: | 750 x 510 |
Tamaño fichero: | 57.34 kbytes |
Captura: | |
Modelo cámara: | |
Velocidad obturador: | |
Focal length: | |
Apertura: | |
Flash: | |
ISO: |