Cassiterite with Tourmaline Amazonite " John listed at least

" John listed at least a dozen localities for Vivianite in his book and stressed that lustrous

Specimen # BOL711B262

good luster and minimal damage

Specimen # AMAZWH111929

Cassiterite with Tourmaline Amazonite " John listed at leastThe 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 is a good, lustrous,