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Silicon dioxide

Quartz in the East Region

  • No notable occurrences in database yet.

Quartz in the Front Range Region

Quartz in the Northwest Region

Quartz in the South Central Region

Quartz in the Southwest Region


Cluster of slender, colorless quartz crystals averaging 5 - 10 mm in length on dark metallic crystallized chalcopyrite. Overall size is 3.5 x 7 x 3 cm. From the Idarado Mine, Ouray Co.
Photo courtesy of Dan Weinrich Minerals.


Quartz cluster from the Alice Mine near Idaho Springs. Measures 3.5 x 2cm.
Photo courtesy of ARCH Minerals.


This quartz group has some calcite growing mainly on one side of the specimen. From the Idarado Mine, Ouray Co. Measures 5 x 8 x 4.5cm.
Photo courtesy of Kevin Conroy Minerals.

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