Beryl var. Aquamarine (etched)

Itatia Mine, Minas Gerais, Brazil

Quartz, var. Herkimer Diamond

Ace of Diamonds Mine, Herkimer County, New York

Olmiite on matrix

N Chwanning II Mine, Kuruman, Republic of South Africa

Corundum Var. Sapphire

Balangoda, near Ratnapura, Sabaragamuwa Province, Sri Lanka

Spinel (rough and cut)

Mogok, Sagaing District, Mandalay Division, Burma (Myanmar)

Stilbite

Jalgaon, India