Specimens

unknown

Eshowe, Natal, South Africa

Zircon

Rapid Creek, Yukon, Canada

Siderite, Lazulite

Cobalt, Ontario, Canada

Silver, Safflorite

Morogoro, Tanzania

Morogoro, Tanzania

Morogoro, Tanzania

Morogoro, Tanzania

Morogoro, Tanzania

Morogoro, Tanzania

Morogoro, Tanzania

Morogoro, Tanzania

Morogoro, Tanzania

Morogoro, Tanzania

Morogoro, Tanzania

Morogoro, Tanzania

Morogoro, Tanzania

Morogoro, Tanzania

Morogoro, Tanzania

Morogoro, Tanzania

Yaogangxian Mine, Hunan, China

Fluorite

Huanzala Mine, Peru

Pyrite, Calcite

Laurion, Greece

Rosasite

Brandberg, Namibia

Quartz

Katanga, Congo

Arsenopyrite, Dolomite, Kolwezite