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Acanthite from
Caribou Mine (Caribou shaft), Caribou Mine group, Grand Island, Caribou Mining District, Boulder County, Colorado, USA


Locality type:Mine
Classification
Species:Acanthite
Formula:Ag2S
Comments:Argentite was reported by Endlich (1878) and Wright (1954). Supergene acanthite with covellite was observed in small fractures and vugs at the Caribou mine by Francis (1987). Raines (1992) discussed the mineralogy at Caribou.
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Acanthite data
Locality Data:Click here to view Caribou Mine (Caribou shaft), Caribou Mine group, Grand Island, Caribou Mining District, Boulder County, Colorado, USA
Data Identifiers
Mindat Occurrence Record ID:30143
Long-form Identifier:1:3:30143:1
GUID (UUID V4):0
Nearest other occurrences of Acanthite
0.3km (0.2 miles) ⓘComstock Occurrence, Caribou Mining District, Boulder County, Colorado, USA
0.3km (0.2 miles) ⓘPotosi & Cross Mines, Caribou Mining District, Boulder County, Colorado, USA
0.3km (0.2 miles) ⓘPoorman Mine (2), Caribou Mining District, Boulder County, Colorado, USA
0.3km (0.2 miles) ⓘWigwam, Caribou Mining District, Boulder County, Colorado, USA
11.5km (7.1 miles) ⓘWhite Raven Mine, Ward Mining District, Boulder County, Colorado, USA
18.6km (11.5 miles) ⓘJohn Jay Mine, Jamestown Mining District, Boulder County, Colorado, USA
20.0km (12.4 miles) ⓘGrey Eagle Mine, Ward Mining District, Boulder County, Colorado, USA
20.1km (12.5 miles) ⓘGolconda Mine, Fall River, Clear Creek County, Colorado, USA
24.2km (15.1 miles) ⓘBride Vein, Idaho Tunnel, Central City Mining District, Clear Creek County, Colorado, USA
25.1km (15.6 miles) ⓘLittle Emma Tunnel, Idaho Springs Mining District (Virginia Mining District), Clear Creek 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
Page, Lincoln R., Stocking, Hobart E., Smith, Harriet B. (1956) Contributions to the geology of uranium and thorium by the United States Geological Survey and Atomic Energy Commission for the United Nations International Conference on Peaceful Uses of Atomic Energy, Geneva, Switzerland, 1955. Professional Paper 300. US Geological Survey doi:10.3133/pp300
Eckel, Edwin Butt; Cobban, Robert R.; Mosburg, Shirley K.; Foord, Eugene E. (1997) Minerals of Colorado. Fulcrum Publishing.
 
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