Stannite, Zinkenite
San Jose Mine, Oruro City, Cercado Province, Oruro Department, Bolivia
Thumbnail, 2.7 x 2.6 x 1.8 cm
These specimens came out of this mine years and years ago, but are still some of the most unique and rare association specimens from any locality. This piece features some good size, semi lustrous, sharp, dark "brass" colored, twinned crystals of the rare copper iron tin sulfide Stannite associated with dozens of excellent quality, highly lustrous, metallic grey color prisms of the lead antimony sulfide Zinkenite. To the best of my knowledge, this is the only locality in the world where these two species are found together. There were only a handful of these specimens found. This is a very choice specimen and a great quality "thumbnail" for what it is. 2.7 x 2.6 x 1.8cm