William Prychodko

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

Calcite on Copper; Complex Calcite twin over Calcite phantom on Copper

William Severance

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

Calcite on Copper; Calcite twin over Calcite phantom on Copper

William Severance

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

Calcite on Copper; Calcite twin over Calcite phantom on Copper

William Severance