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Chalcedony from
Peewink Mountain tunnel, Boulder County Tungsten Mining District, Boulder County, Colorado, USA


Locality type:Tunnel
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 Peewink Mountain tunnel, Boulder County Tungsten Mining District, Boulder County, Colorado, USA
Data Identifiers
Mindat Occurrence Record ID:662459
Long-form Identifier:1:3:662459:0
GUID (UUID V4):0
Nearest other occurrences of Chalcedony
4.6km (2.8 miles) ⓘCold Spring Mine, Boulder County Tungsten Mining District, Boulder County, Colorado, USA
5.7km (3.5 miles) ⓘLogan & Sunbeam Occurrence, Gold Hill Mining District, Boulder County, Colorado, USA
5.7km (3.6 miles) ⓘClyde Mine (Lily Mine; Gale Mine; Hoosier; Western Star), Boulder County, Colorado, USA
7.8km (4.8 miles) ⓘConger Mine, Boulder County Tungsten Mining District, Boulder County, Colorado, USA
7.9km (4.9 miles) ⓘBettig mine, Boulder County Tungsten Mining District, Boulder County, Colorado, USA
9.7km (6.0 miles) ⓘBlack Hawk No. 1 vein, Boulder County Tungsten Mining District, Boulder County, Colorado, USA
12.0km (7.5 miles) ⓘBlue Jay Mine, Jamestown, Jamestown Mining District, Boulder County, Colorado, USA
12.4km (7.7 miles) ⓘCaribou Mine (Caribou shaft), Caribou Mine group, Grand Island, Caribou Mining District, Boulder County, Colorado, USA
23.1km (14.3 miles) ⓘSchwartzwalder Mine (Ralston Creek Mine), Ralston Buttes Mining District, Jefferson County, Colorado, USA
25.3km (15.7 miles) ⓘGerman and Belcher, Quartz Hill, Central City Mining District (Central Mining District), Gilpin County, Colorado, USA
References
Lovering, T.S., Goddard, E.N. (1950) Geology and ore deposits of the Front Range, Colorado. Professional Paper 223. US Geological Survey doi:10.3133/pp223
 
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