Corundum Var. Sapphire Balangoda, near Ratnapura, Sabaragamuwa Province, Sri Lanka |
Zoisite Var. Tanzanite Arusha, Merelani, Tanzania |
Olmiite on matrix N Chwanning II Mine, Kuruman, Republic of South Africa |
Opal var. Hyalite San Luis Potosi, Mexico |
Adamite on Limonite Ojuela Mine, Mapimi, Durango, Mexico |
Danburite rough and cut San Luis Potosi, Mexico |