Stephen Gerome

Calcite

Calcite

Calcite, Prehnite

Fluorite, Sphalerite

Calcite

Calcite, Stilbite, Quartz

Calcite, Sphalerite

Blue Fluorite

Calcite, Rhodochrosite

Calcite

Calcite, Stilbite, Heulandite, Chalcedony

Calcite

Calcite, Amethyst

Calcite, Sphalerite

Fluorite

Calcite, Quartz

Calcite, Heulandite, Quartz

Calcite, Hematite, Chalcedony

Calcite