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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Sylvanite from
Golden Age, Jamestown 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 Golden Age, Jamestown Mining District, Boulder County, Colorado, USA
Data Identifiers
Mindat Occurrence Record ID:662693
Long-form Identifier:1:3:662693:8
GUID (UUID V4):0
Nearest other occurrences of Sylvanite
2.6km (1.6 miles) ⓘAlice Mine, Jamestown, Jamestown Mining District, Boulder County, Colorado, USA
2.6km (1.6 miles) ⓘBueno (Buena Group), Jamestown Mining District, Boulder County, Colorado, USA
3.4km (2.1 miles) ⓘBuena Mine, Jamestown Mining District, Boulder County, Colorado, USA
3.9km (2.4 miles) ⓘLast Chance Occurrence (Pine Shade), Jamestown Mining District, Boulder County, Colorado, USA
4.4km (2.7 miles) ⓘSmuggler Mine, Balarat Mining District, Boulder County, Colorado, USA
4.6km (2.8 miles) ⓘBlack Rose mine, Jamestown Mining District, Boulder County, Colorado, USA
4.6km (2.8 miles) ⓘGolden Bell Occurrence (Providence; Forget Me Not; Chamois; Last Chance; John Jay & MS; Kicking Horse; Cross; Cleveland; Surprise; Yates), Gold Hill Mining District, Boulder County, Colorado, USA
6.0km (3.7 miles) ⓘJohn Jay Mine, Jamestown Mining District, Boulder County, Colorado, USA
6.3km (3.9 miles) ⓘPrussian, Ward Mining District, Boulder County, Colorado, USA
6.5km (4.0 miles) ⓘInterocean Mine, 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
 
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