Specimens

Que Phong, Nghe An Prov., Vietnam

Quartz

Rancho Laguna, Chihuahua, Mexico

Merelani Hills, Arusha, Tanzania

Zoisite

Mysore, India

Corundum

Chenzhou, Hunan, China

Chalcopyrite, Calcite

Gem Mine, San Benito Co., California, USA

Benitoite, Neptunite

Minais Gerais, Brazil

Kyanite

Jos, Nigeria

Beryl

Merelani Hills, Arusha, Tanzania

Zoisite, Prehnite

Nephi, Utah, USA

Madagascar

Irai, Rio Grande do Sul, Brazil

Utah, USA

Variscite

Shengus, Skardu District, Pakistan

Väyrynenite

Erongo Mountains, Namibia

Beryl

Cerro de Mercado, Durango, Mexico

Leiping Mine, Chenzhou, Hunan Province, China

Calcite

Merelani Hills, Arusha, Tanzania

Diopside

Merelani Hills, Arusha, Tanzania

Diopside

Merelani Hills, Arusha, Tanzania

Diopside

Merelani Hills, Arusha, Tanzania

Zoisite

Morogoro, Tanzania

Morogoro, Tanzania

Merelani Hills, Arusha, Tanzania

Graphite, Grossular, Quartz

Merelani Hills, Arusha, Tanzania

Graphite, Tremolite