Quartz Silicon dioxide SiO2

Quartz in the East Region No notable occurrences in database yet. Quartz in the Front Range Region Boulder County - Caribou area - Pennsylvania Mine Clear Creek County - Georgetown area - Idaho Springs area - Silver Plume area Douglas County - Long Hollow area - Pine Creek area Gilpin County - Central City area Jefferson County - Little Patsy Pegmatite - Oregon No. 3 Pegmatite - Wigwam Creek area Larimer County - Red Feather Lakes area Quartz in the Northwest Region Eagle County - Eagle Mine Grand County - Green Ridge area Mesa County - Amethyst Queen Mine Routt County - Hahns Peak Summit County - Big Four Mine - Montezuma area Quartz in the South Central Region Chaffee County - California Mine - Calumet Mine - Clara May Mine - Crystal No. 8 Mine - Homestake Mine - Mt. Antero - Mt. White - Sedalia Mine - St. Elmo area Custer County - White Hills area El Paso County - Cheyenne Canyon - Crystal Park - Deadmans Canyon pegmatite - Hunters Run - Johnny Feldspar Mine - Sentinel Rock - Specimen Rock - St. Peters Dome - Stove Mountain Fremont County - Curio Hill - Royal Gorge area - Texas Creek area Lake County - Black Cloud Mine - Capitol Mine - Climax Mine - Garbutt Mine - Leadville area - Maid of Erin Mine - Mikado Mine - Printer Boy Mine - Silver Cord Mine - Wolftone Mine Mineral County - Creede area - Wagon Wheel Gap area Park County - Alma area - Badger Flats area - Black Prince Mine - Hilltop Mine - Redskin Gulch - Round Mountain area - Spruce Grove area - Sweet Home Mine - Tarryall area Rio Grande County - Summitville District Saguache County - Bonanza area - Crystal Hill Teller County - Cripple Creek area - Crystal Peak - Four Mile Creek area - Lake George area - RAMS Claim - Teller Pegmatite Quartz in the Southwest Region Dolores County - Rico area Gunnison County - Gold Belt area - Quartz Creek area Hinsdale County - Lake City area La Plata County - La Plata Mountain mines Ouray County - Belle of the West Mine - Burger King Pocket - Camp Bird Mine - Crystal Cavern - Grizzly Bear Mine - Idarado Mine - KD Pocket - Laughing Tom Pocket - Leaning Tree Pocket - Meteor Pocket - Mineral Farm Mine - National Belle Mine - Ohio Claim - Ohio Mine - OS Pocket - Ouray County mines - Portland Mine - Senorita Mine - Silver Link Mine - Silver Point Mine - Waterhole Pocket San Juan County - Bandora Mine - Brooklyn Mine - Keystone claim - Mogul Mine - Silverton area San Miguel County - Ophir area - Telluride area

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. Quartz from the Ohio Mine, Ouray County. Measures 14.5 x 5.5 x 5cm. Photo courtesy of Kevin Conroy Minerals. Quartz encrustation (epimorph) of a fluorite octahedron from the Climax Mine.

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