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
Norwich Mine (Essex Mine), Norwich, Ontonagon 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 Norwich Mine (Essex Mine), Norwich, Ontonagon County, Michigan, USA
Data Identifiers
Mindat Occurrence Record ID:384875
Long-form Identifier:1:3:384875:3
GUID (UUID V4):0
Nearest other occurrences of Calcite
12.8km (7.9 miles) ⓘVictoria Mine, Victoria, Ontonagon County, Michigan, USA
16.1km (10.0 miles) ⓘWhite Pine Mine, White Pine, Ontonagon County, Michigan, USA
17.5km (10.9 miles) ⓘNational Mine, Rockland, Ontonagon County, Michigan, USA
17.5km (10.9 miles) ⓘPeninsula Mine, Ontonagon County, Michigan, USA
17.8km (11.1 miles) ⓘMinesota Mine, Rockland, Ontonagon County, Michigan, USA
18.0km (11.2 miles) ⓘNonesuch formation, White Pine, Ontonagon County, Michigan, USA
18.7km (11.6 miles) ⓘRockland Mine, Rockland, Ontonagon County, Michigan, USA
19.1km (11.9 miles) ⓘMichigan Mine, Rockland, Ontonagon County, Michigan, USA
19.2km (12.0 miles) ⓘCranberry Creek, Ontonagon County, Michigan, USA
19.8km (12.3 miles) ⓘBumblebee Mine, Rockland, Ontonagon County, Michigan, USA
References
(2005) Mineral Resources Data System (MRDS), US Geological Survey.
 
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