Siete Suyos mine, Atocha-Quechisla District, Sud Chichas Province, Potosí Department, Bolivia
The Siete Suyos mine (Seven Servants mine) is sometimes considered to be part of the Animas mine, and it is often difficult to know where specimens are from because several mines in the area share the same vein system. The good news is that I directly obtained this specimen from the miner who collected it, so I know for certain where it came from. I honestly have never seen any specimens from this locality before, but I was happy to purchase the pieces I obtained. This piece features a fairly sharp, lustrous, large Pyrite pseudomorph after compressed rhombohedra of Siderite which is associated with sharp, translucent greenish-brown colored Siderite crystals and minor grey crystals of the rare sulfide, Stannite. So far, this find was very limited, so if you're a collector of Bolivian minerals, be sure to pick this one up.