Fluorite & Sphalerite & Calchopyrite mineral specimen from Illinois.

Tourmaline crystal from Brazil.

Fluorite Mineral Specimen from China.

Fluorite with Byssolite inclusion crystal specimen from China.

Pyrite after Baculites yokohami from Colorado.

Fluorite on Quartz from Colorado.

Chalcopyrite on Calcite from China.

Tourmaline crystal from Brazil.

Topaz from Colorado.

At least 30 individual, emerald-green DIOPTASE crystals sprinkled on a Dolomite matrix. The largest dioptase crystal is 0.3 inches long. Luster is adamantine. Crystals are rhombohedral shape. The specimen is from the famous TSUMEB Mine in Namibia. From the collection of Kim Cathcart.

Emerald & Muscovite on Quartz from Zambia.

Apophyllite on Stilbite from India.

Cluster of large emerald-green DIOPTASE crystals on matrix. The two largest dioptase crystals are 0.5 inches long. Luster is adamantine. Crystals are rhombohedral shape. The specimen is from the famous TSUMEB Mine in Namibia. Custom base. Minor white Calcite crystals are sprinkled over the specimen.

Specimen of brilliant GOLD crystals on Sericite matrix. The specimen weighs 54 grams (1.9 ounces). Length is 1.8 inches. El Dorado County, California is famous for its gold production since the California Gold Rush in 1849. 

Brilliant GOLD LEAF from the famous Little Jonny Mine in Leadville, Colorado. The gold weighs 1.8 grams (0.063 ounces).

A beautiful gem crystal of Aquamarine from Vietnam.