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Biotite from
Jacobsville Sandstone, Torch Lake Township, Houghton County, Michigan, USA


Locality type:Quarry
Classification
Species:'Biotite' (not an IMA approved species)
Formula:K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Biotite data
Locality Data:Click here to view Jacobsville Sandstone, Torch Lake Township, Houghton County, Michigan, USA
Data Identifiers
Mindat Occurrence Record ID:403109
Long-form Identifier:1:3:403109:3
GUID (UUID V4):0
Nearest other occurrences of Biotite
32.5km (20.2 miles) ⓘAshbed flow, Calumet Township, Houghton County, Michigan, USA
44.4km (27.6 miles) ⓘGreenstone flow, Allouez Township, Keweenaw County, Michigan, USA
47.1km (29.3 miles) ⓘYellow Dog peridotite, Michigamme Township, Marquette County, Michigan, USA
48.4km (30.1 miles) ⓘEast Eagle Mine, Michigamme Township, Marquette County, Michigan, USA
54.7km (34.0 miles) ⓘMichigamme Mine, Michigamme, Michigamme Township, Marquette County, Michigan, USA
61.7km (38.3 miles) ⓘChampion Mine, Champion, Champion Township, Marquette County, Michigan, USA
63.4km (39.4 miles) ⓘLake Michigamme (2), Michigamme, Marquette County, Michigan, USA
66.5km (41.3 miles) ⓘEcho Lake Intrusion, Ontonagon County, Michigan, USA
67.1km (41.7 miles) ⓘNew Humboldt Mine, Humboldt Township, Marquette County, Michigan, USA
67.5km (41.9 miles) ⓘUnnamed outcrop, 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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