Acanthite

Imiter, Atlas Mountains, Morocco

Beryl var. Aquamarine (etched)

Itatia Mine, Minas Gerais, Brazil

Opal (rough and cut)

Shoa Province, Ethiopia

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