Opal (polished) Jalisco, Mexico |
Corundum var. Sapphire Potanino Mine, Ilmen Mountains, Russia |
Olmiite on matrix N Chwanning II Mine, Kuruman, Republic of South Africa |
Quartz var. Faden Dara Ismael Khan District, Waziristan, Pakistan |
Corundum Var. Sapphire Balangoda, near Ratnapura, Sabaragamuwa Province, Sri Lanka |
Serandite with Aegirine Mont St. Hilaire, Quebec, Canada |