Corundum var. Sapphire

Potanino Mine, Ilmen Mountains, Russia

Danburite: Rough and Cut

Charcas, San Luis Potosi, Mexico

Opal (rough and cut)

Shoa Province, Ethiopia

Corundum Var. Sapphire

Balangoda, near Ratnapura, Sabaragamuwa Province, Sri Lanka

Smithsonite

Tsumeb Mine, Tsumeb, Namibia

Tourmaline Var. Elbaite

Kunar Province, Afganistan