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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


A sparkling white cluster of drusy quartz casts after scalenohedral calcite crystals. This is one of a large lot collected by George Robertson in 1998. From the Ohio Mine in Ouray County. Measures 8 x 7 cm.
Photo courtesy of Dave Bunk Minerals.


Quartz encrustation (epimorph) of a barite blade from the Silver Point Mine in Ouray County. Specimen is 9 cm long.


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

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