Quartz

Paredón, Ramos Arizpe Mun., Coahuila, Mexico

Small Cabinet, 9.3 x 8.5 x 5.0 cm

Quartz

Ace of Diamonds Mine, Middleville, Herkimer Co., New York, USA

Thumbnail, 2.3 x 1.7 x 1.7 cm

Calcite

Minerva No. 1 Mine, Ozark-Mahoning group, Cave-In-Rock Mining Sub-Dist., Hardin Co., Illinois, USA

Cabinet, 14.1 x 9.5 x 8.7 cm

Calcite

St. Andreasberg, Harz Mountains, Lower Saxony, Germany

Small Cabinet, 8.4 x 4.3 x 3.8 cm

Calcite

St. Andreasberg, Harz Mountains, Lower Saxony, Germany

Small Cabinet, 7.7 x 5.8 x 4.7 cm

Calcite

St. Andreasberg, Harz Mountains, Lower Saxony, Germany

Small Cabinet, 7.9 x 6.0 x 4.6 cm

Calcite

St. Andreasberg, Harz Mountains, Lower Saxony, Germany

Small Cabinet, 8.3 x 7.4 x 3.2 cm

Calcite

Dongpo Mine, Yizhang Co., Chenzhou, Hunan Prov., China

Cabinet, 9.7 x 2.3 x 1.9 cm

Calcite

Dongpo Mine, Yizhang Co., Chenzhou, Hunan Prov., China

Cabinet, 11.8 x 7.5 x 4.6 cm

Calcite

Dongpo Mine, Yizhang Co., Chenzhou, Hunan Prov., China

Cabinet, 11.1 x 2.7 x 2.6 cm

Calcite

Dongpo Mine, Yizhang Co., Chenzhou, Hunan Prov., China

Cabinet, 12.5 x 2.3 x 1.5 cm

Calcite

Dongpo Mine, Yizhang Co., Chenzhou, Hunan Prov., China

Large Cabinet, 18.6 x 4.0 x 3.6 cm

Calcite

Egremont, West Cumberland Iron Field, Cumbria, England, UK

Cabinet, 10.5 x 6.0 x 4.5 cm

Calcite

Tsumeb Mine, Otjikoto Region, Namibia

Small Cabinet, 6.1 x 4.9 x 3.8 cm

Calcite

Tsumeb Mine, Otjikoto Region, Namibia

Cabinet, 13.6 x 9.5 x 6.6 cm

Calcite

middle slope of Dat Taw Mount, Dattaw camp, Mogok Valley Zone, Mandalay Region, Myanmar (Burma)

Miniature, 6.4 x 3.4 x 2.0 cm

Quartz

Huanggang Fe-Sn deposit, Chifeng City, Inner Mongolia, China

Cabinet, 9.2 x 7.4 x 6.0 cm

Calcite

Meikle Mine, Elko Co., Nevada, USA

Small Cabinet, 7.0 x 5.2 x 4.8 cm

Calcite

Jinhua, Zhejiang Province, China

Small Cabinet, 6.4 x 3.1 x 1.5 cm

Calcite

Jinhua, Zhejiang Province, China

Small Cabinet, 6.7 x 2.0 x 1.1 cm