S15048 – Tennantite

Tsumeb is known for this type of distinctive pseudomorph and this piece is EXCEPTIONAL for a pseudo. This spray, one of the rarest and most three-dimensional specimens from the mine, is in unusually fine condition with a metallic sheen and texture that really appeals to me and I like the way it displays in 360 degree views. The specimen includes analyzed tennantite replacing crystals of what is now considered to be its replacement of chalcocite since azurite doesn’t form in drill bit twins.