Ferberite with Marcasite and Arsenopyrite Chalcanthite This piece was collected in

This piece was collected in the late 1970s – early 1980s and remained in a private collection for decades

deep golden color Pyrite octahedral and micro Quartz crystals

Only a very small percentage of the Augelites from Machacamarca are found in twinned crystals

the piece is in great shape all the way around

Ferberite with Marcasite and Arsenopyrite Chalcanthite This piece was collected inA wonderfully well crystallized, and eye catching closed twin of Ferberite with great form, sharpness and luster is coated by spherical aggregates of pale golden Marcasite and minor grey Arsenopyrite. The piece is virtually undamaged on the display side and when propped up, the piece displays beautifully. Good Bolivian Ferberites are not often found with any associated minerals, especially with any kind of aesthetic appeal like this one. Its a great