Danburite rough and cut San Luis Potosi, Mexico |
Quartz var. Faden Dara Ismael Khan District, Waziristan, Pakistan |
Wulfenite Wulfenite from Villa Ahumada, Sierra de Los Lamentos, Chihuahua, Mexico |
Corundum Var. Sapphire Balangoda, near Ratnapura, Sabaragamuwa Province, Sri Lanka |
Apophyllite with Scolecite Jalisgoan, near Jalgoan, Maharashtra State, India |
Opal (polished) Jalisco, Mexico |