Calcite on Pyrite, Hungary, Large Cabinet-Sized SpecimenApprox. Dimensions: 5. 1 in x 3. 8 in x 1. 6 in Approx. Weight: 647 grams An intriguing specimen of platy Pyrite topped by two blocky crystals of Calcite. The white calcite contrasts nicely with the golden colored Pyrite, and the differing shapes of the minerals create a striking display.

Weight: 404 grams

bands of light and dark gray are encased beneath a transparent layer of crystal

A lovely mixture of brown

A rare specimen of Loellingite with a silvery vein running through the center of a base rock

Czech Republic and Saxony Germany

Weight: 653 grams

One large crystal of Quartz makes up the base of this specimen with smaller Calcite crystals set on top

Weight: 331 grams

Dimensions: 6 in x 6

The cubic shape of its cleavage and its inter-grown cubes create a neat and fascinating appearance referred to as penetration twins

Intriguing specimen of prismatic Calcite crystals surrounding a base of deep purple cubes of Fluorite

consistent color