Siderite with Pyrite and Stannite

Siete Suyos mine, Atocha-Quechisla District, Sud Chichas Province, Potosu Department, Bolivia
Miniature, 4.1 x 3.2 x 2.7 cm
Start Time: 06/09/2011 6:45:00 pm (CDT)
End Time: 06/16/2011 6:49:37 pm (CDT)
Auction Closed

Item Description

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 of this material from this locality before, and I was happy to purchase the pieces I obtained. This piece features a few good quality, sharp, translucent greenish-brown, hexagonal crystals of Siderite measuring up to 1.2 cm across which are associated with unusual crystals of lustrous Pyrite (pseudomorphs after Siderite) which are associated with minor grey crystals of the rare sulfide, Stannite. For Siderite, the quality is impressive for Bolivia, as I rarely have seen such sharp and gemmy crystals from any Bolivian locality. So far, this find was very limited, so if you're a collector of Bolivian minerals, be sure to pick this one up.

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