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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Pyrolusite from
Cannon Mine (Bengal-Tully Mine), Stambaugh, Iron River, Iron County, Michigan, USA


Locality type:Mine
Classification
Species:Pyrolusite
Formula:Mn4+O2
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Pyrolusite data
Locality Data:Click here to view Cannon Mine (Bengal-Tully Mine), Stambaugh, Iron River, Iron County, Michigan, USA
Data Identifiers
Mindat Occurrence Record ID:49234
Long-form Identifier:1:3:49234:4
GUID (UUID V4):0
Nearest other occurrences of Pyrolusite
1.8km (1.1 miles) ⓘHiawatha Group, Stambaugh, Iron River, Iron County, Michigan, USA
5.3km (3.3 miles) ⓘHomer-Wauseca Group, Mineral Hills, Iron River, Iron County, Michigan, USA
6.9km (4.3 miles) ⓘChicagon mine, Bates Township, Iron County, Michigan, USA
63.6km (39.5 miles) ⓘUnnamed iron mine, Ford Dam trail, Alberta, Baraga County, Michigan, USA
66.5km (41.3 miles) ⓘTaylor Mine, Alberta, Baraga County, Michigan, USA
66.7km (41.4 miles) ⓘNorth testpits, Taylor Mine, Alberta, Baraga County, Michigan, USA
87.8km (54.6 miles) ⓘMather A shaft, Mather Mine (Pioneer pellet plant; Ore improvement plant), Negaunee, Marquette County, Michigan, USA
89.4km (55.6 miles) ⓘJackson Mine (South Jackson pit), Negaunee, Marquette County, Michigan, USA
89.6km (55.7 miles) ⓘMcComber Mine (Lucy Mine; Pendill; East Jackson), Negaunee, Marquette County, Michigan, USA
90.0km (56.0 miles) ⓘManganese Mine (Aetna; Schadt; Etna), Negaunee, Marquette County, Michigan, USA
References
Morris, Tom (1983) Michigan Mineralogy. A locality Index. Rocks & Minerals, 58 (3). 107-113 doi:10.1080/00357529.1983.11767128p.109
 
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