Vote for your favorite mineral in #MinCup26! - Sphalerite vs. Anorthite
Both zinc ore Sphalerite and calcium plagioclase feldspar Anorthite have perfect cleavage that will split cleanly if you hit them with a hammer, but only one can claim a larger split of your votes!
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Acanthite from
Sylvanite, Dorchester Mining District, Gunnison County, Colorado, USA


Locality type:Mine
Classification
Species:Acanthite
Formula:Ag2S
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Acanthite data
Locality Data:Click here to view Sylvanite, Dorchester Mining District, Gunnison County, Colorado, USA
Data Identifiers
Mindat Occurrence Record ID:490804
Long-form Identifier:1:3:490804:3
GUID (UUID V4):0
Nearest other occurrences of Acanthite
6.4km (4.0 miles) ⓘAmerican Eagle; Luona Occurrence, Elk Mountain Mining District (Snowmass Mountain Mining District), Gunnison County, Colorado, USA
16.8km (10.4 miles) ⓘPatricia Lee Occurrence, Marble Mining District, Gunnison County, Colorado, USA
18.2km (11.3 miles) ⓘForest Queen Mine, Ruby Mining District (Elk Mountain Mining District; Irwin Mining District), Gunnison County, Colorado, USA
18.7km (11.6 miles) ⓘLittle Annie Mine (Claim: Little Annie), Aspen Mining District (Roaring Fork Mining District), Pitkin County, Colorado, USA
19.1km (11.9 miles) ⓘMidnight Mine, Aspen Mining District (Roaring Fork Mining District), Pitkin County, Colorado, USA
19.3km (12.0 miles) ⓘRuby Chief Occurrence (Bird; Little Bonnie; Perhaps; Staten Island; Monte Cristo; No. 7; Bullion King; Crystal; Hopewell; Alfreda), Ruby Mining District (Elk Mountain Mining District; Irwin Mining District), Gunnison County, Colorado, USA
23.4km (14.6 miles) ⓘAspen Mine (Claim: Aspen), Aspen Mining District (Roaring Fork Mining District), Pitkin County, Colorado, USA
24.1km (15.0 miles) ⓘDurant Mine, Aspen Mining District (Roaring Fork Mining District), Pitkin County, Colorado, USA
25.3km (15.7 miles) ⓘMollie Gibson Mine, Aspen, Aspen Mining District (Roaring Fork Mining District), Pitkin County, Colorado, USA
26.1km (16.2 miles) ⓘDella S. Mine (Ballarat; Fossil Fraction; Della S.; J. C. Johnson; Alpine; Last Chance; General Jackson; Bushwhacker; Claims: Alma M.; Chatfield), Aspen Mining District (Roaring Fork Mining District), Pitkin 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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