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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Datolite from
Adventure mine, Greenland, Greenland Township, Ontonagon County, Michigan, USA


Locality type:Mine
Classification
Species:Datolite
Formula:CaB(SiO4)(OH)
Confirmation
Validity:Believed Valid
Associated Minerals Based on Photo Data:
Native Copper3
Epidote3
Data
Mineral Data:Click here to view Datolite data
Locality Data:Click here to view Adventure mine, Greenland, Greenland Township, Ontonagon County, Michigan, USA
Data Identifiers
Mindat Occurrence Record ID:48432
Long-form Identifier:1:3:48432:7
GUID (UUID V4):0
Nearest other occurrences of Datolite
1.2km (0.8 miles) ⓘHilton Mine (Ohio Mine), Greenland, Greenland Township, Ontonagon County, Michigan, USA
1.4km (0.9 miles) ⓘRidge Mine, Mass Consolidated Mine, Mass City, Ontonagon County, Michigan, USA
1.6km (1.0 miles) ⓘMass Consolidated Mine, Mass City, Ontonagon County, Michigan, USA
1.6km (1.0 miles) ⓘMass Mine, Mass Consolidated Mine, Mass City, Ontonagon County, Michigan, USA
1.9km (1.2 miles) ⓘEvergreen Bluff Mine, Mass City, Ontonagon County, Michigan, USA
1.9km (1.2 miles) ⓘEvergreen Series (Evergreen Lodes), Ontonagon County, Michigan, USA
2.2km (1.3 miles) ⓘSouth Lake Mine (Aztec Mine), Mass City, Ontonagon County, Michigan, USA
2.5km (1.5 miles) ⓘOgima Mine, Mass Consolidated Mine, Mass City, Ontonagon County, Michigan, USA
2.9km (1.8 miles) ⓘBelt Mine (Piscatauqua), Mass City, Ontonagon County, Michigan, USA
3.0km (1.9 miles) ⓘOld Mass Mine, Mass City, Ontonagon County, Michigan, USA
References
Rosemeyer, T. (1990) Through the Scope: Microminerals of the Caledonia Mine Ontonagon County, Michigan. Rocks & Minerals: 65(3): 240.
Morris, Tom (1983) Michigan Mineralogy. A locality Index. Rocks & Minerals, 58 (3). 107-113 doi:10.1080/00357529.1983.11767128p.112
 
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