Quartz Var. Rose Lavra da Ilha Pegmatite, Taquaral, Itinga, Aracuai, Minas Gerais, Brazil |
Corundum var. Sapphire Potanino Mine, Ilmen Mountains, Russia |
Beryl var. Aquamarine (etched) Itatia Mine, Minas Gerais, Brazil |
Olmiite on Calcite N Chwanning II Mine, Kuruman, Republic of South Africa |
Opal (polished) Jalisco, Mexico |
Adamite on Limonite Ojuela Mine, Mapimi, Durango, Mexico |