McDermitt Mine (Cordero Mine; Old Cordero Mine), Opalite District, Humboldt Co., Nevada, USA
Toenail, 3.0 x 2.8 x 1.2 cm
A very rich and colorful example of the form of Kleinite mined from this classic locality in the early 1990s by California collectors. The specimen is completely covered by the micro crystals. One of the richest and most attractive specimens of this very rare species that I have ever seen. I believe this is the best locality for crystals of the species, and this piece has to be one of the richest and most colorful dense bundles of kleinite out there. Ex. Charlie Key Collection.