A rare iron phosphate mineral, Strengite, from Arkansas. 

A rare pseudomorph of Smithsonite after Dolomite from Arkansas. 

Sphalerite, Huanggang Mine, Chifeng, Inner Mongolia, China

Smoky Quartz cluster from Diamantina, Minas Gerais, Brazil

Fluorite, Lead Hill, Cave-in-Rock District, Hardin County, Illinois

Cuprite on native Copper

Fluorescent Purple Flourite, Greenlaw’s Mine, England

A beautiful gem crystal of Aquamarine from Vietnam. 

Unique specimen of white Colemanite crystals. A calcium borate mineral from Death Valley, California. The specimen was legally recovered prior to 2011.

Location: Sigma Pit, Ryan District, Death Valley, California, USA

Specimen size: 16.9 x 14.2 x 8.8 cm (6.7 x 5.6 x 3.5 inch) Cabinet

Specimen weight: 1,135 gr (2 lb 8.0 oz)

Museum-size Beryl variety Goshenite, with Scheelite and Calcite on Muscovite combo

Double-terminated, Scalenohedral Rhodochrosite from Uchucchacua Mine, Peru

Very pretty and showy gem lustrous red scalenohedral crystals of rhodochrosite are set on matrix. The largest rhodochrosite crystal is double-terminated and measures 17 mm in length. Excellent cherry-red color. Glassy to Vitreous luster.

Location: Uchucchacua Mine, Oyon Province, Lima Department, Peru

Specimen size: 5.0 x 3.4 x 3.2 cm (2.0 x 1.3 x 1.3 inch) Miniature

Specimen weight: 70 grams (2.5 oz)

Stunning color contrast of green Siderite “Blades” with brassy, iridescent Chalcopyrite crystals in this specimen. Several of the Siderite blades are 1-inch long. The luster of the Siderite is vitreous to pearly while the Chalcopyrite has a brilliant metallic luster.

Large Hessonite crystals with adamantine luster. Color is reddish-orange to brown. Largest Hessonite crystal is 4-cm long. Another is 2.7-cm. Minor Vesuvianite (green) in matrix.