Ferberite (twin)

Item Description

Here is an attractive miniature sized twinned crystal group of Ferberite from the famous Tasna Mine. This species was sometimes previously referred to as "Wolframite", which was supposed to be an intermediary species between Ferberite and Hubnerite, but has since been discredited. This piece features the classic, "butterfly" twinning of Ferberite along the a (100) face. This piece is a good quality, fairly thick, sharp, lustrous, aesthetic, jet-black, multi-twinned specimen that is displayable from a few angles. Yes, there a few rough spots, so it's not completely damage free, but it's very hard to get good twins of Ferberite from any locality, not just Tasna. Twinned crystals from Bolivia have becoming increasingly difficult for me to obtain from Bolivia. These are definitely the most highly sought after crystal habit from this locality as well.