Opal (polished)

Jalisco, Mexico

Danburite: Rough and Cut

Charcas, San Luis Potosi, Mexico

Acanthite

Imiter, Atlas Mountains, Morocco

Zoisite Var. Tanzanite

Arusha, Merelani, Tanzania

Linarite

Sunshine #1 Mine, Bingham, NM

Corundum var. Sapphire

Potanino Mine, Ilmen Mountains, Russia