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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Polybasite from
American Sisters Mine, Lawson Mining District, Clear Creek County, Colorado, USA


Locality type:Mine
Classification
Species:Polybasite
Formula:[Ag6Sb2S7][Ag9CuS4]
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Polybasite data
Locality Data:Click here to view American Sisters Mine, Lawson Mining District, Clear Creek County, Colorado, USA
Data Identifiers
Mindat Occurrence Record ID:48621
Long-form Identifier:1:3:48621:9
GUID (UUID V4):0
Nearest other occurrences of Polybasite
0.7km (0.4 miles) ⓘJoe Reynolds (Elida), Lawson Mining District, Clear Creek County, Colorado, USA
0.7km (0.4 miles) ⓘMurry Mine, Lawson Mining District, Clear Creek County, Colorado, USA
1.1km (0.7 miles) ⓘNabob Mine (Silver Belt; Baltic; Last Chance; Walt Stemble), Lawson Mining District, Clear Creek County, Colorado, USA
1.2km (0.7 miles) ⓘSenator Tunnel, Lawson Mining District, Clear Creek County, Colorado, USA
4.5km (2.8 miles) ⓘHumboldt et al Claims, Cascade, Chicago Creek, Clear Creek County, Colorado, USA
4.8km (3.0 miles) ⓘDixie Mine, Lamartine Mining District, Clear Creek County, Colorado, USA
4.9km (3.0 miles) ⓘCharter Oak Prospect (Tyone), Chicago Creek, Clear Creek County, Colorado, USA
5.0km (3.1 miles) ⓘOld Settler Mine & Tunnel, Lawson Mining District, Clear Creek County, Colorado, USA
5.7km (3.5 miles) ⓘSummit (Magnet; Woodley; Mascotte; Comet), Georgetown District, Clear Creek County, Colorado, USA
6.7km (4.2 miles) ⓘDorit - King Solomon Tunnel (King Solomon), Lamartine Mining District, Clear Creek County, Colorado, USA
References
Dana 6:1089.
 
and/or  
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