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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 white quartz crystals from the Ohio Mine in Ouray County. Specimen is 13 cm long.


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.


Typical Black Cloud sulfide ore coated by quartz crystals to 1.5 cm with a secondary growth coating most of the plate. There are casts in the secondary overgrowth that look like possible casts of earlier dolomite crystals. From the Black Cloud Mine in Leadville. Measures 8 x 4 cm.
Photo courtesy of Dave Bunk Minerals.

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