Ferberite amber medium blue-green colored Amazonite crystals

medium blue-green colored Amazonite crystals with no matrix

This is not only a first-time find for Hopeite from Bolivia

This is a first-rate Zinkenite specimen

It's not completely unstable like decomposing Limonite and it provides a much more appealing contrast than ordinary Pyrite

If you’re a Bolivian collector

Ferberite amber medium blue-green colored Amazonite crystalsA classic V shaped twin (twinned along the {100} face) of Ferberite from the famous Tasna mine in far southern Bolivia. This locality has produced what must be the finest twinned Ferberite crystals extant. Ferberite, as a species, is not known in well crystallized examples worldwide, and the twins from Tasna are a favorite among collectors. This twin is a great example of the material as it shows a fairly open twin, with aesthetic form. Along with the