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MD-162502
Quartz (Var: Chalcedony)
Tampa Bay, Tampa, Hillsborough Co., Florida, USA
Large Cabinet, 23.9 x 2.2 x 2.1 cm
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When does a sea creature's home qualify as a rock? When it has been fossilized, or pseudomorphed by agate! You can see on the ends of this long branch of what used to be coral that it has been completely replaced inside by concentric rings of dense, hard agate; both ends have been polished to emphasize this.

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Quartz

Quartz

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Thumbnail, 2.3 x 1.7 x 1.7 cm
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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