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 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


Locality type:Occurrence
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 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
Data Identifiers
Mindat Occurrence Record ID:492599
Long-form Identifier:1:3:492599:6
GUID (UUID V4):0
Nearest other occurrences of Sylvanite
1.5km (0.9 miles) ⓘJohn Jay Mine, Jamestown Mining District, Boulder County, Colorado, USA
1.5km (0.9 miles) ⓘBuena Mine, Jamestown Mining District, Boulder County, Colorado, USA
1.9km (1.2 miles) ⓘBlack Rose mine, Jamestown Mining District, Boulder County, Colorado, USA
2.3km (1.4 miles) ⓘAlice Mine, Jamestown, Jamestown Mining District, Boulder County, Colorado, USA
2.3km (1.4 miles) ⓘBueno (Buena Group), Jamestown Mining District, Boulder County, Colorado, USA
4.1km (2.5 miles) ⓘPrussian, Ward Mining District, Boulder County, Colorado, USA
4.6km (2.8 miles) ⓘGolden Age, Jamestown Mining District, Boulder County, Colorado, USA
5.1km (3.2 miles) ⓘSlide Mine, Gold Hill Mining District, Boulder County, Colorado, USA
5.1km (3.2 miles) ⓘCold Springs Group (Times Tunnel; Hoodoo; Horsefal; Haddock; Crown; King; Wolf Tongue; Red Cloud), Gold Hill Mining District, Boulder County, Colorado, USA
5.1km (3.2 miles) ⓘLast Chance Occurrence (Pine Shade), Jamestown 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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