Martin Zinn

Petalite image

Tom & Melissa Campbell

1

Franklinite image

Peter Giangrande

Rhodochrosite-coated Calcite on Quartz image

Rhodochrosite-coated Calcite on Quartz

Peter Giangrande

Elbaite, Lepidolite image

Elbaite, Lepidolite

Rhodochrosite image

1

Rhodochrosite, Manganite image

Rhodochrosite, Manganite

Fluorite image

Legrandite image

University of Texas at Austin

Manganite image

1

Ludlamite image

1

Wulfenite image

Frank Imbriacco III

11

2