Explore museum-quality mineral specimens from around the world. Each piece has been carefully selected by Grant Powell for its exceptional beauty, rarity, and scientific significance.
Petalite, Tourmaline (Elbaite)
Petalite (Castorite) – Large Gem-Clear Crystalline Mass with Etched Faces and Included Green Tourmaline
Shengus, Roundu District, Gilgit-Baltistan, Pakist...
