Specimens

Ross Co. Ohio, USA (?)

Pyrite, Goethite

Dogtooth Peak, Fresno Co., California, USA

Quartz

Itrongay, Betroka, Anosy Region, Madagascar

Sanidine

Merelani Hills, Arusha, Tanzania

Grossular

Outokumpu, North Karelia, Finland

Uvarovite

Conception del Oro, Zacatecas, Mexico

Pyrite, Calcite, Quartz

West Cumberland Iron Field, Cumbria, England

Pyrite, Hematite, Calcite

Akchatau, Kazakhstan

Quartz

Arizona, USA

Brochantite

unknown

Calcite

Mibladen, Morocco

Vanadinite

Navajun, La Rioja, Spain

Pyrite

Navajun, La Rioja, Spain

Pyrite

Vizelle, Dauphine, France

Quartz

Guanajuato, Mexico

Calcite, Quartz

Sierra Negra, Minas Gerais, Brazil

Quartz

Lyndhurst, Ontario, Canada

Quartz

Thunder Bay, Ontario, Canada

Hematite, Quartz

North Bend, Washington, USA

Pyrite, Quartz

Kagoro, Kaduna State, Nigeria

Gahnite

Kagoro, Kaduna State, Nigeria

Gahnite

Kagoro, Kaduna State, Nigeria

Gahnite

Kagoro, Kaduna State, Nigeria

Gahnite

Kagoro, Kaduna State, Nigeria

Gahnite

Kagoro, Kaduna State, Nigeria

Gahnite