Specimens

Kagoro, Kaduna State, Nigeria

Gahnite

Douglas Hill Mine, Ludwig, Yerington Mining District, Lyon Co., Nevada, USA

Brochantite, Chrysocolla

Unknown

Quartz

Zacatecas, Mexico

Calcite, Tosudite, Quartz

Mission Mine, Pima Co, Arizona, USA

Copper, Gypsum

Cobalt, Ontario, Canada

Silver

Cruziero Mine, Minas Gerais, Brazil

Poa Alta Mine, Coronel Murta, Minas Gerais, Brazil

Sapo Mine, Minas Gerais, Brazil

Huanggang Mine, Inner Mongolia, China

Ilvaite

Mission Mine, Pima Co, Arizona, USA

Copper, Gypsum

Itrongay, Betroka, Anosy Region, Madagascar

Sanidine

Itrongay, Betroka, Anosy Region, Madagascar

Sanidine

Itrongay, Betroka, Anosy Region, Madagascar

Sanidine

Merelani Hills, Arusha, Tanzania

Tremolite

Merelani Hills, Arusha, Tanzania

Tremolite

Merelani Hills, Arusha, Tanzania

Tremolite

Merelani Hills, Arusha, Tanzania

Tremolite

Merelani Hills, Arusha, Tanzania

Tremolite

Merelani Hills, Arusha, Tanzania

Tremolite

Merelani Hills, Arusha, Tanzania

Tremolite

Kagoro, Kaduna State, Nigeria

Gahnite

Kagoro, Kaduna State, Nigeria

Gahnite

Kagoro, Kaduna State, Nigeria

Gahnite

Joplin, Missouri, USA

Galena, Sphalerite