Acanthite

Imiter, Atlas Mountains, Morocco

Corundum var. Sapphire

Potanino Mine, Ilmen Mountains, Russia

Diopside

Merelani Hills, Lelatema Mtns., Arusha Region, Tanzania

Opal var. Hyalite

San Luis Potosi, Mexico

Quartz "Faden"

Dara Ismael Khan District, Waziristan, Pakistan

Corundum Var. Sapphire

Balangoda, near Ratnapura, Sabaragamuwa Province, Sri Lanka