Tourmaline var. Uvite with Magnesite and Quartz Brumado, Bahia, Northeast Region, Brazil |
Opal: Rough and Cut Shoa Province, Ethiopia |
Quartz var. Faden Dara Ismael Khan District, Waziristan, Pakistan |
Opal (rough and cut) Shoa Province, Ethiopia |
Opal (polished) Jalisco, Mexico |
Corundum Var. Sapphire Balangoda, near Ratnapura, Sabaragamuwa Province, Sri Lanka |