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
Ogima Mine, Mass Consolidated Mine, Mass City, Ontonagon County, Michigan, USA


Locality type:Mine
Classification
Species:Datolite
Formula:CaB(SiO4)(OH)
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Datolite data
Locality Data:Click here to view Ogima Mine, Mass Consolidated Mine, Mass City, Ontonagon County, Michigan, USA
Data Identifiers
Mindat Occurrence Record ID:414749
Long-form Identifier:1:3:414749:7
GUID (UUID V4):0
Nearest other occurrences of Datolite
0.6km (0.4 miles) ⓘEvergreen Series (Evergreen Lodes), Ontonagon County, Michigan, USA
0.6km (0.4 miles) ⓘEvergreen Bluff Mine, Mass City, Ontonagon County, Michigan, USA
0.6km (0.4 miles) ⓘOld Mass Mine, Mass City, Ontonagon County, Michigan, USA
0.9km (0.6 miles) ⓘMass Mine, Mass Consolidated Mine, Mass City, Ontonagon County, Michigan, USA
0.9km (0.6 miles) ⓘKnowlton Mine, Mass City, Ontonagon County, Michigan, USA
0.9km (0.6 miles) ⓘMass Consolidated Mine, Mass City, Ontonagon County, Michigan, USA
1.1km (0.7 miles) ⓘRidge Mine, Mass Consolidated Mine, Mass City, Ontonagon County, Michigan, USA
1.4km (0.9 miles) ⓘCaledonia Mine, Mass City, Ontonagon County, Michigan, USA
2.5km (1.5 miles) ⓘAdventure mine, Greenland, Greenland Township, Ontonagon County, Michigan, USA
3.4km (2.1 miles) ⓘHilton Mine (Ohio Mine), Greenland, Greenland Township, Ontonagon 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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