Aramayoite (Huge Crystal, Rare Silver Species!)
Animas Mine, Chocoya, Potosi, Bolivia
Thumbnail, 2.3 x 1.5 x 1.2 cm
Ex. Dr. Mark Feinglos
One of the rarest silver minerals that isn't just found in microscopic amounts in polished sections. Usually seen, when seen at all, in very small cleavages. This is an outstanding specimen from the original locality, with much of the specimen consisting of large thick xl plates of aramayoite. Specimens like this, likely found in the 1920s, rarely come on the market. It is, according to Mark, unprecedented in quality since the discovery of the mineral in 1926. It was an abberant crystal that turned up in an old collection purchased by Cal Graeber some years ago. True, it is a crude crystal that fades out at the base, but it has a decent termination and clear faces, and is of rather high import so a few blemishes can be forgiven in that regard.