Corundum var. Sapphire Potanino Mine, Ilmen Mountains, Russia |
Smithsonite Tsumeb Mine, Tsumeb, Namibia |
Opal (polished) Jalisco, Mexico |
Olmiite on Calcite N Chwanning II Mine, Kuruman, Republic of South Africa |
Quartz, var. Herkimer Diamond Ace of Diamonds Mine, Herkimer County, New York |
Garnet var. Hessonite Jeffrey Mine, Asbestos, Quebec, Canada |