BournoniteA wonderful single crystal of Bournonite showing BRIGHT metallic luster, and superb form. Crystals with high luster from this mine are not common, even in toenail small miniature sized crystals like this one. The piece is complete all the way around and damage free, save the base where it came off the host rock. It certainly could be classified as a cogwheel piece, as it is twinned, and does have some small cogs around the edges. Specimen # BOL711B25

The piece truly looks better in person as Ferberite is a difficult species to accurately photograph

An attractive matrix display specimen featuring a few blocky crystals of very pale blue-green Microcline (probably not dark enough for what I would call Amazonite) associated with starkly contrasting Smoky Quartz and highlighted by snow white Albite (var: Cleavelandite)

A great small cabinet specimen for somebody looking to own a rare and highly displayable mineral specimen

rove beetle (Staphylinidae) and bark beetle (Scolytinae)

and the twins from Tasna are a favorite among collectors

but the main Amazonite crystals on the top of the piece are well-terminated and look nice when viewing from above

A very sharp

the Siglo XX specimens are also found with interesting associations and pleasing matrixes

golden color crystals of this hard-to-find species on matrix

The reverse side of the specimen shows exceedingly rare

metallic silvery sword shaped crystals of Stibnite forming a very aesthetic crystal “spray”

this piece is associated with the incredibly rare