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A classic “V”-shaped or “heart”-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 this material as it shows a fairly “open” twin, with aesthetic form. Along with the amazingly sharp faces, good luster and minimal damage, it’s a very worthwhile representation of these classic specimens. Specimen # BOL711B76
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🇺🇸 Ship from USA · On Agora since 2026
$400.00