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Calcite from
Northwestern Mine, Central, Houghton Township, Keweenaw County, Michigan, USA


Locality type:Mine
Classification
Species:Calcite
Formula:CaCO3
Confirmation
Validity:Believed Valid
Associated Minerals Based on Photo Data:
Malachite1
Native Copper1
Cuprite1
Data
Mineral Data:Click here to view Calcite data
Locality Data:Click here to view Northwestern Mine, Central, Houghton Township, Keweenaw County, Michigan, USA
Data Identifiers
Mindat Occurrence Record ID:101943
Long-form Identifier:1:3:101943:8
GUID (UUID V4):0
Nearest other occurrences of Calcite
0.5km (0.3 miles) ⓘCentral Mine, Central, Houghton Township, Keweenaw County, Michigan, USA
1.5km (0.9 miles) ⓘCentral Exploration Mine, Central, Houghton Township, Keweenaw County, Michigan, USA
1.9km (1.2 miles) ⓘPetherick Mine, Copper Falls, Eagle Harbor Township, Keweenaw County, Michigan, USA
2.1km (1.3 miles) ⓘCopper Falls Mine, Copper Falls, Eagle Harbor Township, Keweenaw County, Michigan, USA
2.1km (1.3 miles) ⓘGribble vein, Owl Creek Fissure Mine, Copper Falls Mine, Copper Falls, Eagle Harbor Township, Keweenaw County, Michigan, USA
2.4km (1.5 miles) ⓘOwl Creek, Copper Falls, Eagle Harbor Township, Keweenaw County, Michigan, USA
4.6km (2.8 miles) ⓘEagle Harbor Mines, Eagle Harbor Township, Keweenaw County, Michigan, USA
4.6km (2.9 miles) ⓘWaterbury Mine, Eagle Harbor Township, Keweenaw County, Michigan, USA
5.2km (3.3 miles) ⓘMeadow Mine, Phoenix, Houghton Township, Keweenaw County, Michigan, USA
6.0km (3.7 miles) ⓘDrexel Mine, Eagle Harbor Township, Keweenaw County, Michigan, USA
References
Morris, Tom (1983) Michigan Mineralogy. A locality Index. Rocks & Minerals, 58 (3). 107-113 doi:10.1080/00357529.1983.11767128p.111
Rosemeyer, Tom (2009) Copper-bearing Fissure Veins, Keweenaw County, Michigan, Lake Superior Native Copper District (Part 1) Rocks & Minerals, 84 (4) 298-306 doi:10.3200/rmin.84.4.298-306part1
Rosemeyer, Tom (2011) News from the Keweenaw: Part 4—Recent Mineral Finds in Michigan's Copper Country (Seventeenth in a series of articles on the mines and minerals of Michigan's Copper Country) Rocks & Minerals, 86 (3) 206-227 doi:10.1080/00357529.2011.568281
 
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