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this piece is associated with the incredibly rare
this is a good representative piece
If you’re a Sphalerite collector or a Bolivian mineral collector
which hopefully could one day produce specimens of the same size and quality as those from Unificada
Cassiterite (GEM quality!) Sigloite this piece is associated withA very impressive and certainly hard to find GEM quality Cassiterite specimen from the famous Viloco Mine. This locality bears the unique distinction of producing the only GEM quality (facet grade) Cassiterites from any mine in Bolivia. Considering the millions of tons of tin ore that Bolivia has yielded, the fact that only one mine ever produced transparent Cassiterite is remarkable. A fine, sharp, lustrous, beautiful, well formed cyclic twinned
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