Vote for your favorite mineral in #MinCup26! - Quartz vs. Asagiite
It's a classic vs a newbie as the most common named mineral in the crust Quartz is up against an exceedingly-rare sea foam-green mineral discovered just a few years ago Asagiite.
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Quartz from
Brereton Mine, Coal Creek, Ralston Buttes Mining District, Jefferson County, Colorado, USA


Locality type:Mine
Classification
Species:Quartz
Formula:SiO2
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Quartz data
Locality Data:Click here to view Brereton Mine, Coal Creek, Ralston Buttes Mining District, Jefferson County, Colorado, USA
Data Identifiers
Mindat Occurrence Record ID:493096
Long-form Identifier:1:3:493096:9
GUID (UUID V4):0
Nearest other occurrences of Quartz
4.0km (2.5 miles) ⓘStrang pegmatite occurrence (S. B. Strang Ralston Creek pegmatite), Clear Creek Pegmatite Province, Jefferson County, Colorado, USA
5.8km (3.6 miles) ⓘMena Mine (Hoffmeister Homestead Prospect; Black Judge Shaft), Ralston Buttes Mining District, Jefferson County, Colorado, USA
6.9km (4.3 miles) ⓘDrew Hill Prospect (Drew Hill Pegmatites Nos. 1 and 2), Clear Creek pegmatite Province, Jefferson County, Colorado, USA
7.8km (4.8 miles) ⓘSchwartzwalder Mine (Ralston Creek Mine), Ralston Buttes Mining District, Jefferson County, Colorado, USA
10.0km (6.2 miles) ⓘRobinson Gulch pegmatite, Clear Creek pegmatite Province, Jefferson County, Colorado, USA
10.2km (6.3 miles) ⓘGuy Hill pegmatite area, Jefferson County, Colorado, USA
11.5km (7.1 miles) ⓘGilpin Eureka Essex Group, Eureka Mining District, Gilpin County, Colorado, USA
12.3km (7.6 miles) ⓘFred Pierce Ranch (Ramstetter Quarry), Front Range, Jefferson County, Colorado, USA
12.3km (7.6 miles) ⓘG. H. Buckman Ranch, Front Range, Jefferson County, Colorado, USA
12.3km (7.7 miles) ⓘKeystone Mine, Magnolia Mining District, Boulder County, Colorado, USA
References
Eckel, Edwin Butt; Cobban, Robert R.; Mosburg, Shirley K.; Foord, Eugene E. (1997) Minerals of Colorado. Fulcrum Publishing.
 
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