Learn about Cassiterite
mirror-like luster and dense, prismatic crystals; localities Panasqueira, Xuebaoding, Viloco; value hinges on finish, size, and matrix.Cassiterite from Panasqueira Mines, Portugal
Panasqueira Mines, Portugal — Cassiterite, a classic European W-Sn-Cu locality; jet-black, sharp crystals with luster, often with muscovite and quartz.
Comments