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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Chert from
Chicagon mine, Bates Township, Iron County, Michigan, USA


Locality type:Mine
Classification
Type:Chert
Confirmation
Validity:Believed Valid
Associated Minerals:
Associates:Sussexite
Data
Mineral Data:Click here to view Chert data
Locality Data:Click here to view Chicagon mine, Bates Township, Iron County, Michigan, USA
Data Identifiers
Mindat Occurrence Record ID:384703
Long-form Identifier:1:3:384703:9
GUID (UUID V4):0
Nearest other occurrences of Chert
3.9km (2.4 miles) ⓘMichaels Reserve prospect, Bates Township, Iron County, Michigan, USA
4.0km (2.5 miles) ⓘRogers Mine, Bates Township, Iron County, Michigan, USA
6.9km (4.3 miles) ⓘCannon Mine (Bengal-Tully Mine), Stambaugh, Iron River, Iron County, Michigan, USA
6.9km (4.3 miles) ⓘBengal Mine (Bangal Mine), Cannon Mine (Bengal-Tully Mine), Stambaugh, Iron River, Iron County, Michigan, USA
6.9km (4.3 miles) ⓘBorland Reserve prospect, Caspian, Iron County, Michigan, USA
7.0km (4.3 miles) ⓘSpies-Johnson Mine, Spies-Virgil Mine, Mineral Hills, Iron River, Iron County, Michigan, USA
7.0km (4.3 miles) ⓘBaker Mine, Stambaugh Township, Iron County, Michigan, USA
7.2km (4.5 miles) ⓘCorry '40' Mine, Berkshire Mine, Buck Group, Gaastra, Iron County, Michigan, USA
7.5km (4.7 miles) ⓘDegrasse Mine, Buck Group, Gaastra, Iron County, Michigan, USA
7.5km (4.7 miles) ⓘBerkshire Mine, Buck Group, Gaastra, Iron County, Michigan, USA
References
Palache, Charles; Berman, Harry; Frondel, Clifford (1951) The System of Mineralogy (7th ed.) Vol. 2 - Halides, Nitrates, Borates, Carbonates, Sulfates, Phosphates, Arsenates, Tungstates, Molybdates, Etc. John Wiley and Sons.
(2005) Mineral Resources Data System (MRDS), US Geological Survey.
 
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