Beryl var. Aquamarine (etched)

Itatia Mine, Minas Gerais, Brazil

Heulandite with Stilbite

Jalgon, Maharashtra State, India

Olmiite on Calcite

N Chwanning II Mine, Kuruman, Republic of South Africa

Opal (polished)

Jalisco, Mexico

Corundum Var. Sapphire

Balangoda, near Ratnapura, Sabaragamuwa Province, Sri Lanka

Tourmaline var. Uvite with Magnesite and Quartz

Brumado, Bahia, Northeast Region, Brazil