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Sylvanite from
Cold Spring and Red Cloud, Gold Hill Mining District, Boulder County, Colorado, USA


Locality type:Mine
Classification
Species:Sylvanite
Formula:AgAuTe4
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Sylvanite data
Locality Data:Click here to view Cold Spring and Red Cloud, Gold Hill Mining District, Boulder County, Colorado, USA
Data Identifiers
Mindat Occurrence Record ID:371878
Long-form Identifier:1:3:371878:0
GUID (UUID V4):0
Nearest other occurrences of Sylvanite
5.8km (3.6 miles) ⓘPoorman group, Gold Hill Mining District, Boulder County, Colorado, USA
6.4km (4.0 miles) ⓘAmerican Mine, Sunshine, Gold Hill Mining District, Boulder County, Colorado, USA
6.4km (4.0 miles) ⓘGrand View, Gold Hill Mining District, Boulder County, Colorado, USA
6.4km (4.0 miles) ⓘInterocean Mine, Gold Hill Mining District, Boulder County, Colorado, USA
6.4km (4.0 miles) ⓘWashburn Mine, Sunshine, Gold Hill Mining District, Boulder County, Colorado, USA
7.6km (4.7 miles) ⓘRichmond Mine, Gold Hill Mining District, Boulder County, Colorado, USA
8.2km (5.1 miles) ⓘMelvina, Gold Hill Mining District, Boulder County, Colorado, USA
8.2km (5.1 miles) ⓘIngram mine (Valley Forge Occurrence; Critic and Railroad Boy; Sunshine; Three Brothers; Atchison; Belle; Golden Eagle; Melvina; Baron; Richmond), Gold Hill Mining District, Boulder County, Colorado, USA
8.2km (5.1 miles) ⓘBlack Cloud, Gold Hill Mining District, Boulder County, Colorado, USA
8.6km (5.4 miles) ⓘGrand Republic Occurrence, Gold Hill Mining District, Boulder 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
(2005) Mineral Resources Data System (MRDS), US Geological Survey.
 
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