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MD-212107
Quartz (Var: Chalcedony)
Tampa Bay, Tampa, Hillsborough Co., Florida, USA
Large Cabinet, 18.1 x 13.7 x 4.5 cm
SOLD
This is a (human) brain-sized, natural formation of coral that has been pseudomorphed inside by gleaming chalcedony. There are other examples of pseudomorphs of minerals after organic matter, including (of course) petrified wood. But this has to be one of the more dramatic.

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Quartz

Quartz

Ace of Diamonds Mine, Middleville, Herkimer Co., New York, USA
Thumbnail, 2.3 x 1.7 x 1.7 cm
Quartz

Quartz

Huanggang Fe-Sn deposit, Chifeng City, Inner Mongolia, China
Cabinet, 9.2 x 7.4 x 6.0 cm
Quartz

Quartz

Gerstenegg-Sommerloch tunnel, Guttannen, Interlaken-Oberhasli, Bern, Switzerland
Small Cabinet, 6.6 x 5.8 x 3.2 cm
Quartz

Quartz

Paredón, Ramos Arizpe Mun., Coahuila, Mexico
Small Cabinet, 9.3 x 8.5 x 5.0 cm
Quartz

Quartz

Pena Blanca Mine, San Pablo de Borbur, Western Boyaca Prov., Boyacá Dept., Colombia
Cabinet, 11.9 x 5.5 x 4.7 cm
Quartz (scepter)

Quartz (scepter)

Ace of Diamonds Mine, Middleville, Town of Newport, Herkimer Co., New York, USA
Small Cabinet, 5.4 x 2.8 x 2.1 cm
Quartz (pseudocubic)

Quartz (pseudocubic)

Coleman Mine, near Jessieville, Arkansas, USA
Cabinet, 11.9 x 5.7 x 3.8 cm
Quartz (Herkimer Diamond)

Quartz (Herkimer Diamond)

Ace of Diamonds Mine, Middleville, Herkimer Co., New York, USA
Miniature, 3.7 x 2.7 x 2.6 cm
Quartz (Japan Law twin)

Quartz (Japan Law twin)

Collier Creek Mine, Mt Ida, Montgomery Co., Arkansas, USA
Cabinet, 12 x 10 x 8 cm
Quartz on Calcite with Anthraxolite (petroleum)

Quartz on Calcite with Anthraxolite (petroleum)

Middleville, Herkimer County, New York, USA
Small Cabinet, 5.9 x 4.0 x 1.6 cm
Quartz and Pyrite

Quartz and Pyrite

Spruce Claim, Goldmyer Hot Springs, King Co., Washington, USA
Small Cabinet, 8.0 x 7.2 x 5.5 cm
Quartz (Herkimer Diamond)

Quartz (Herkimer Diamond)

Fonda, Mohawk Township, Montgomery Co., New York, US
Cabinet, 10.3 x 8.3 x 6.6 cm
Quartz var. Smoky (Japan Law Twin)

Quartz var. Smoky (Japan Law Twin)

Lincoln Co., New Mexico, USA
Miniature, 4.7 x 4.5 x 3.5 cm
Quartz (pseudocubic)

Quartz (pseudocubic)

Ace of Diamonds Mine, Herkimer Co., New York, USA
Thumbnail, 3.1 x 1.6 x 1.0 cm
Quartz - Herkimer Diamond

Quartz - Herkimer Diamond

Middleville, Herkimer Co., New York, USA
Small Cabinet, 6.5 x 4.9 x 3.6 cm
Quartz with Hematite

Quartz with Hematite

Jinlong Hill, Longchuan Co., Heyuan, Guangdong, China
Small Cabinet, 6.2 x 4.4 x 3.5 cm
Quartz 'Herkimer Diamond' and Dolomite

Quartz 'Herkimer Diamond' and Dolomite

Hickory Hill, Fonda, Mohawk Township, Montgomery Co., New York, US
Cabinet, 11.3 x 9.2 x 6.8 cm
Quartz - variety

Quartz - variety "Diamond Scepter"

Treasure Mountain Diamond Mine, Little Falls, Herkimer Co., New York, USA
Miniature, 5.4 x 2.9 x 2.8 cm
Quartz Var. Amethyst

Quartz Var. Amethyst

Las Vigas, Veracruz, Mexico
Small Cabinet, 8.1 x 4.2 x 3.1 cm
Quartz With Amethyst

Quartz With Amethyst

Gobobos, Namibia
Miniature, 5.6 x 4.3 x 2.9 cm