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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.


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.


An excellent large cluster of quartz epimorphs after barite from the Idarado Mine. Although singles are common enough to obtain, clusters are uncommon in this size, and in good shape. Ex. Ed David Collection. Measures 10 x 8 x 6 cm.
Photo courtesy of The Arkenstone.

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