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A few accenting blades of Ferberite and nearly micro Quartz crystals sit on the matrix to create this beautiful and three-dimensional display specimen
Specimen # BOL711B200
I acquired just a few of these specimens in 2011 and I honestly thought them to be a common and unassuming associated species i
Specimen # BOL711B145
Cassiterite ex A few accenting blades ofThis 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. Several great, sharp, semi lustrous, beautiful, well formed black and brown cyclic twinned crystals make for an appealing display piece. A slight brown color can be seen when
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