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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


Although a common mineral, quartz is rare at the Eagle Mine. This is a nice, sharp, gemmy crystal scattered with a few small siderite crystals. Measures 3 x 4 cm.
Photo courtesy of Dave Bunk Minerals.


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 encrustation (epimorph) of a fluorite octahedron from the Climax Mine.

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