Corundum Var. Sapphire Balangoda, near Ratnapura, Sabaragamuwa Province, Sri Lanka |
Smithsonite Tsumeb Mine, Tsumeb, Namibia |
Danburite rough and cut San Luis Potosi, Mexico |
Olmiite on matrix N Chwanning II Mine, Kuruman, Republic of South Africa |
Adamite on Limonite Ojuela Mine, Mapimi, Durango, Mexico |
Lapis Lazuli (polished and carved) Sar-e-Sang, Badakhshan Province, Afghanistan |