Cassiterite on matrix Augelite An attractive matrix display specimen

An attractive matrix display specimen featuring a few blocky crystals of very pale blue-green Microcline (probably not dark enough for what I would call Amazonite) associated with starkly contrasting Smoky Quartz and highlighted by snow white Albite (var: Cleavelandite)

thin bladed crystals with a rich fiery golden-orange hue associated with WATER CLEAR Quartz crystals free of matrix

Specimen # BOL711B133

which is virtually impossible to find at Viloco

well-formed cyclic twinned crystal group sits atop tan compressed rhomobohedra of Siderite to create a beautiful “black and tan” association piece

Cassiterite on matrix Augelite An attractive matrix display specimenThe Viloco Mine (sometimes called Araca) for many years has stood as one of the top Cassiterite localities in the world. This mine is still active today and 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. This piece features several