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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Chrysocolla from
Mass Mine, Mass Consolidated Mine, Mass City, Ontonagon County, Michigan, USA


Locality type:Mine
Classification
Species:Chrysocolla
Formula:Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Chrysocolla data
Locality Data:Click here to view Mass Mine, Mass Consolidated Mine, Mass City, Ontonagon County, Michigan, USA
Data Identifiers
Mindat Occurrence Record ID:94903
Long-form Identifier:1:3:94903:7
GUID (UUID V4):0
Nearest other occurrences of Chrysocolla
4.5km (2.8 miles) ⓘAlgomah Mine, Mass City, Ontonagon County, Michigan, USA
7.1km (4.4 miles) ⓘMinesota Mine, Rockland, Ontonagon County, Michigan, USA
7.4km (4.6 miles) ⓘNational Mine, Rockland, Ontonagon County, Michigan, USA
8.7km (5.4 miles) ⓘIndiana Mine, Winona, Greenland Township, Ontonagon County, Michigan, USA
18.2km (11.3 miles) ⓘWinona Mine, Winona, Elm River Township, Houghton County, Michigan, USA
56.0km (34.8 miles) ⓘIsle Royal No. 1 shaft, Isle Royal Mines, Houghton, Houghton County, Michigan, USA
57.3km (35.6 miles) ⓘQuincy Mine, Quincy Township, Houghton County, Michigan, USA
60.8km (37.8 miles) ⓘArcadian Mine, Ripley, Franklin Township, Houghton County, Michigan, USA
69.5km (43.2 miles) ⓘUnited States Metals Refining Company exploration (Copperwood Mine), Gogebic County, Michigan, USA
70.8km (44.0 miles) ⓘOsceola Mine, Osceola, Calumet Township, Houghton 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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