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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Chalcedony from
Schwartzwalder Mine (Ralston Creek Mine), Ralston Buttes Mining District, Jefferson County, Colorado, USA


Locality type:Mine
Classification
Species:Quartz var: Chalcedony
Formula:SiO2
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Chalcedony data
Locality Data:Click here to view Schwartzwalder Mine (Ralston Creek Mine), Ralston Buttes Mining District, Jefferson County, Colorado, USA
Data Identifiers
Mindat Occurrence Record ID:695515
Long-form Identifier:1:3:695515:1
GUID (UUID V4):0
Nearest other occurrences of Chalcedony
9.1km (5.6 miles) ⓘNorth Table Mountain, Golden, Golden Mining District, Jefferson County, Colorado, USA
16.0km (9.9 miles) ⓘGerman and Belcher, Quartz Hill, Central City Mining District (Central Mining District), Gilpin County, Colorado, USA
17.2km (10.7 miles) ⓘGreen Mountain, Golden, Golden Mining District, Jefferson County, Colorado, USA
20.0km (12.4 miles) ⓘInspiration Point, Denver County, Colorado, USA
22.4km (13.9 miles) ⓘBlack Hawk No. 1 vein, Boulder County Tungsten Mining District, Boulder County, Colorado, USA
23.1km (14.3 miles) ⓘPeewink Mountain tunnel, Boulder County Tungsten Mining District, Boulder County, Colorado, USA
23.1km (14.4 miles) ⓘCold Spring Mine, Boulder County Tungsten Mining District, Boulder County, Colorado, USA
23.2km (14.4 miles) ⓘLogan & Sunbeam Occurrence, Gold Hill Mining District, Boulder County, Colorado, USA
23.3km (14.5 miles) ⓘSilver Leaf, Lamartine Mining District, Clear Creek County, Colorado, USA
23.6km (14.6 miles) ⓘDiamond Joe tunnel, Idaho Springs, Lawson Mining District, Clear Creek County, Colorado, USA
References
USGS Open-File Report 83-417
 
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