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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Pearceite from
Gilman Mining District (Battle Mountain Mining District; Red Cliff Mining District), Eagle County, Colorado, USA


Locality type:Mining District
Classification
Species:Pearceite
Formula:[Ag6As2S7][Ag9CuS4]
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Pearceite data
Locality Data:Click here to view Gilman Mining District (Battle Mountain Mining District; Red Cliff Mining District), Eagle County, Colorado, USA
Data Identifiers
Mindat Occurrence Record ID:358259
Long-form Identifier:1:3:358259:6
GUID (UUID V4):0
Nearest other occurrences of Pearceite
21.5km (13.4 miles) ⓘCopper Mountain (Cooper Mountain), Kokomo-Tenmile area, Summit County, Colorado, USA
43.3km (26.9 miles) ⓘGrizzly Gulch, Montezuma Mining District (Snake River Mining District), Summit County, Colorado, USA
44.3km (27.5 miles) ⓘSaints John Mine (Florado; Saint John Mine), Montezuma Area, Summit County, Colorado, USA
45.0km (28.0 miles) ⓘEquity Mine, Montezuma Area, Summit County, Colorado, USA
45.5km (28.3 miles) ⓘBurke Martin Mine (Silver Wing), Snake River, Montezuma Area, Summit County, Colorado, USA
45.9km (28.5 miles) ⓘRed Jacket (Star of the West; Star of the West No. 2; Mohawk; Iowa), Montezuma Area, Summit County, Colorado, USA
46.9km (29.1 miles) ⓘAtlantic Mine, Montezuma Area, Summit County, Colorado, USA
52.2km (32.4 miles) ⓘMollie Gibson Mine, Aspen, Aspen Mining District (Roaring Fork Mining District), Pitkin County, Colorado, USA
53.3km (33.1 miles) ⓘArgentine Pass, Summit County, Colorado, USA
59.6km (37.0 miles) ⓘIllinois, Georgetown District, Clear Creek County, Colorado, USA
References
USGS PP 1017(Lovering,1978)
 
and/or  
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