Diopside from Tanzania, Manyara Region, Merelani Hills

Rhodochrosite with Manganite

Rhodochrosite from South Africa

Spessartine

Aragonite from China, Yunnan, Wenshan, Wenshan City, Wenshan Mine

Purple octahedral fluorite mineral specimen, from Zhejiang, China

Tourmaline with Cleavelandite and Feldspar

Elbaite with Lepidolite and Cleavelandite

Wulfenite

Fluorite on Smoky quartz and Schorl from Namibia, Erongo Region, Erongo Mountains

Azurite from USA, Arizona, Cochise County, Bisbee

Rhodochrosite from Peru, Lima, Uchucchacua Mine

Adamite

Calcite on Sphalerite

Fluorite from Namibia, Erongo Region, Arandis

Calcite Flower on Fluorite and Quartz

Tourmaline from Brazil, Minas Gerais, São José da Safira, Pederneira mine

Laguna Agate

Aquamarine from Pakistan, Gilgit-Baltistan, Shigar District, Braldu Valley, Dassu

Vesuvianite (manganese-rich)

Apophyllite

Tourmaline

Calcite from USA, Tennessee, Elmwood Mine

Rhodochrosite

Rubellite from Brazil, Minas Gerais, Coronel Murta

Fluorite from Namibia, Otjozondjupa Region, Otjiwarongo Constituency, Okorusu Mine

Tourmaline

Wulfenite

Wulfenite with Mimetite

Pyrite on Quartz

Rhodochrosite

Emerald from Colombia, Boyacá Department, Muzo Mine

Barite from China, Ganzhou, Xiefang Mine

Fluorite

Rhodochorosite

Fluorite from Germany, Saxony, Erzgebirgskreis, Annaberg-Buchholz, Frohnau, Bergmännisch Glück Mine

Manganoan Adamite

Tourmaline from Brazil, Minas Gerais, Virgem da Lapa

Laguna Agate

Aquamarine from Brazil, Minas Gerais, Medina

Topaz (var. Imperial)

Laguna Agate

Azurite

Fluorite from China, Hunan, Hengyang, Leiyang Co., Shangbao Mine

Tourmaline with Lepidolite

Cuprite from DR Congo, Lualaba, Mutshatsha, Sicomines copper-cobalt project, Mashamba West Mine