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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


Rhodochrosite and fluorite on quartz. From the Sweet Home Mine near Alma.
Photo courtesy of ARCH Minerals.


A nice miniature quartz after calcite from the 1988 find. This one has the unusual orange staining left from an early sulfide deposition. From the Ohio Mine, Ouray County. Specimen is 3.5 x 6 cm.
Photo courtesy of Dave Bunk Minerals.


Quartz after calcite from the Portland Mine in Ouray County. Also with galena, pyrite and sphalerite. Specimen is 6.5 cm long.

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