Clarence S. Bement

Sulfur image

The Carabas Collection

5

Rutile after Brookite image

Rutile after Brookite

The Mineralogical Museum, University of Delaware

Smoky Quartz image

Fluorite, Siderite image

Fluorite, Siderite

Edward Rosenzweig

Calcite on Copper; Calcite twin over Calcite phantom on Copper image

Calcite on Copper; Calcite twin over Calcite phantom on Copper

William Severance

Copper image

William Severance

Fluorapophyllite on arborescent Copper image

Fluorapophyllite on arborescent Copper

William Severance

Siderite, Quartz image

Siderite, Quartz

William Severance

Almandine image

Wulfenite, Pyromorphite image

Wulfenite, Pyromorphite

Edward Strickler

Sulfur image

Russell E. Behnke

Brucite image

Galena image

1

Uvite image

1

Spinel image

1