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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Calcite from
Chapin Mine, Iron Mountain, Dickinson County, Michigan, USA


Locality type:Mine
Classification
Species:Calcite
Formula:CaCO3
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Calcite data
Locality Data:Click here to view Chapin Mine, Iron Mountain, Dickinson County, Michigan, USA
Data Identifiers
Mindat Occurrence Record ID:57846
Long-form Identifier:1:3:57846:8
GUID (UUID V4):0
Nearest other occurrences of Calcite
0.9km (0.6 miles) ⓘBradley Mine, Iron Mountain, Dickinson County, Michigan, USA
1.3km (0.8 miles) ⓘWalpole Mine, Dickinson County, Michigan, USA
1.7km (1.1 miles) ⓘPewabic Mine, Iron Mountain, Dickinson County, Michigan, USA
10.4km (6.5 miles) ⓘMunroe Mine, Dickinson County, Michigan, USA
12.5km (7.7 miles) ⓘCyclops Mine, Norway, Dickinson County, Michigan, USA
13.4km (8.3 miles) ⓘBrier Hill Prospect, Dickinson County, Michigan, USA
14.3km (8.9 miles) ⓘCurry Mine, Vulcan, Dickinson County, Michigan, USA
14.3km (8.9 miles) ⓘWest Vulcan Mine, Vulcan, Dickinson County, Michigan, USA
16.2km (10.1 miles) ⓘEast Vulcan Mine, Vulcan, Dickinson County, Michigan, USA
19.4km (12.0 miles) ⓘLoretto Mine, Loretto, Dickinson County, Michigan, USA
References
Dana 6:1087.
 
and/or  
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