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


Locality type:Mine
Classification
Species:Aragonite
Formula:CaCO3
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Aragonite data
Locality Data:Click here to view American Sisters Mine, Lawson Mining District, Clear Creek County, Colorado, USA
Data Identifiers
Mindat Occurrence Record ID:48618
Long-form Identifier:1:3:48618:5
GUID (UUID V4):0
Nearest other occurrences of Aragonite
9.2km (5.7 miles) ⓘMarshall, Georgetown District, Clear Creek County, Colorado, USA
9.2km (5.7 miles) ⓘGeorgetown-Silver Plume Mining District (Griffith Mining District; Silver Plume Mining District), Clear Creek County, Colorado, USA
37.2km (23.1 miles) ⓘNorth Table Mountain, Golden, Golden Mining District, Jefferson County, Colorado, USA
37.2km (23.1 miles) ⓘSouth Table Mountain, Golden, Golden Mining District, Jefferson County, Colorado, USA
72.1km (44.8 miles) ⓘSacramento Mine, Sacramento, Alma Mining District, Park County, Colorado, USA
76.5km (47.5 miles) ⓘIbex Mine, Breece Hill, Leadville, Lake County, Colorado, USA
78.8km (49.0 miles) ⓘWolftone Mine, Carbonate Hill, Leadville, Lake County, Colorado, USA
79.1km (49.2 miles) ⓘEvelyn Mine, Lake County, Colorado, USA
92.6km (57.5 miles) ⓘFulford Cave, Fulford Mining District, Eagle County, Colorado, USA
References
Dana 6:1089.
 
and/or  
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