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Grunerite from
Lake Bancroft, Ishpeming, Marquette County, Michigan, USA


Locality type:Lake
Classification
Species:Grunerite
Formula:◻Fe22+Fe52+(Si8O22)(OH)2
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Grunerite data
Locality Data:Click here to view Lake Bancroft, Ishpeming, Marquette County, Michigan, USA
Data Identifiers
Mindat Occurrence Record ID:415992
Long-form Identifier:1:3:415992:6
GUID (UUID V4):0
Nearest other occurrences of Grunerite
2.5km (1.6 miles) ⓘUnnamed locality, Negaunee, Marquette County, Michigan, USA
3.9km (2.4 miles) ⓘUnnamed schist, Negaunee, Marquette County, Michigan, USA
5.3km (3.3 miles) ⓘFoster-Lothian area, Tilden Township, Marquette County, Michigan, USA
5.5km (3.4 miles) ⓘEmpire Mine, Palmer, Richmond Township, Marquette County, Michigan, USA
7.4km (4.6 miles) ⓘGreenwood Mine, Greenwood, Ely Township, Marquette County, Michigan, USA
7.5km (4.7 miles) ⓘPalmer, Marquette County, Richmond Township, Michigan, USA
15.5km (9.6 miles) ⓘUnnamed outcrop (4), Humboldt Township, Marquette County, Michigan, USA
15.9km (9.9 miles) ⓘMichigan prospect, Ely Township, Marquette County, Michigan, USA
17.2km (10.7 miles) ⓘUnnamed locality (2), Humboldt Township, Marquette County, Michigan, USA
17.7km (11.0 miles) ⓘMount Humboldt, Humboldt Township, Marquette 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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