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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Manganite from
Balkan-Judson Mine, Alpha, Mastodon Township, Iron County, Michigan, USA


Locality type:Mine
Classification
Species:Manganite
Formula:Mn3+O(OH)
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Manganite data
Locality Data:Click here to view Balkan-Judson Mine, Alpha, Mastodon Township, Iron County, Michigan, USA
Data Identifiers
Mindat Occurrence Record ID:416642
Long-form Identifier:1:3:416642:9
GUID (UUID V4):0
Nearest other occurrences of Manganite
7.9km (4.9 miles) ⓘBristol - Youngstown Mine (Claire; Clare; Bristol; Bristal; Youngstown), Crystal Falls, Iron County, Michigan, USA
10.3km (6.4 miles) ⓘCayia Mine (D. M. and M.), Crystal Falls Township, Iron County, Michigan, USA
13.5km (8.4 miles) ⓘChicagon mine, Bates Township, Iron County, Michigan, USA
18.7km (11.6 miles) ⓘCannon Mine (Bengal-Tully Mine), Stambaugh, Iron River, Iron County, Michigan, USA
68.2km (42.4 miles) ⓘBlueberry Mine, Snowville, Ely Township, Marquette County, Michigan, USA
69.6km (43.3 miles) ⓘTaylor Mine, Alberta, Baraga County, Michigan, USA
69.8km (43.4 miles) ⓘNorth testpits, Taylor Mine, Alberta, Baraga County, Michigan, USA
73.9km (45.9 miles) ⓘJubilee IGA grocery store site, Ishpeming, Marquette County, Michigan, USA
77.2km (47.9 miles) ⓘJackson Mine (South Jackson pit), Negaunee, Marquette County, Michigan, USA
77.4km (48.1 miles) ⓘMcComber Mine (Lucy Mine; Pendill; East Jackson), Negaunee, Marquette County, Michigan, USA
References
Heinrich, E. W., Robinson, George Willard (2004) Mineralogy of Michigan (2nd ed.) A.E. Seaman Mineral Museum and Michigan Technological University. 252pp.
 
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