Details
ColorsBrown
Origin
Shaft 55, Dzhezkazgan mine, Dzhezkazgan, Kazakhstan
SizeMedium
Dimensions8.7 x 3.1 x 2.1 cm
Species
Description
Acicular crystals of betektinite to 6 cm in length have been totally altered to brassy yellow chalcopyrite. Betektinite is an uncommon copper/iron/lead sulfide and this is the best locality in the world for large crystals of the species. However, I had never seen a piece like this! It is elegant and unusual in appearance, and complete on both sides. This unusual specimen was photographed and illustrated in the MR supplement in May-June of 2013 on page 20. Ex Dale Armstrong collection.
Known provenanceKnowing where your specimen comes from and who owned it adds to its story and value. Good provenance helps prove it's authentic and preserves important details about its discovery.