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
Leadville Mine (Claim: Leadville), Aspen Mining District (Roaring Fork Mining District), Pitkin 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 Leadville Mine (Claim: Leadville), Aspen Mining District (Roaring Fork Mining District), Pitkin County, Colorado, USA
Data Identifiers
Mindat Occurrence Record ID:660206
Long-form Identifier:1:3:660206:2
GUID (UUID V4):0
Nearest other occurrences of Acanthite
5.5km (3.4 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
6.3km (3.9 miles) ⓘMollie Gibson Mine, Aspen, Aspen Mining District (Roaring Fork Mining District), Pitkin County, Colorado, USA
7.5km (4.7 miles) ⓘDurant Mine, Aspen Mining District (Roaring Fork Mining District), Pitkin County, Colorado, USA
8.2km (5.1 miles) ⓘAspen Mine (Claim: Aspen), Aspen Mining District (Roaring Fork Mining District), Pitkin County, Colorado, USA
12.5km (7.8 miles) ⓘMidnight Mine, Aspen Mining District (Roaring Fork Mining District), Pitkin County, Colorado, USA
12.9km (8.0 miles) ⓘLittle Annie Mine (Claim: Little Annie), Aspen Mining District (Roaring Fork Mining District), Pitkin County, Colorado, USA
28.7km (17.8 miles) ⓘAmerican Eagle; Luona Occurrence, Elk Mountain Mining District (Snowmass Mountain Mining District), Gunnison County, Colorado, USA
31.5km (19.6 miles) ⓘSylvanite, Dorchester Mining District, Gunnison County, Colorado, USA
31.9km (19.8 miles) ⓘDinero Mine, St. Kevin - Independence, Lake County, Colorado, USA
35.0km (21.8 miles) ⓘMount Sopris, Pitkin County, Colorado, USA
References
Spurr (1898) Geology of the Aspen Mining District, Colorado. USGS Monograph No. 31
 
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