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Biotite from
Unnamed Pegmatite quarry ("Groveland" pegmatite), Randville, Dickinson 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 Unnamed Pegmatite quarry ("Groveland" pegmatite), Randville, Dickinson County, Michigan, USA
Data Identifiers
Mindat Occurrence Record ID:416727
Long-form Identifier:1:3:416727:3
GUID (UUID V4):0
Nearest other occurrences of Biotite
12.4km (7.7 miles) ⓘRian Quarry, Felch, Dickinson County, Michigan, USA
15.6km (9.7 miles) ⓘBadwater greenstone, Dickinson County, Michigan, USA
18.5km (11.5 miles) ⓘPeavey dam, Mastodon Township, Iron County, Michigan, USA
21.8km (13.6 miles) ⓘWest Kiernan sill, Mansfield Township, Iron County, Michigan, USA
27.5km (17.1 miles) ⓘFluorite railroad cut, Niagara, Marinette County, Wisconsin, USA
34.2km (21.2 miles) ⓘPayant-Chrissman prospect (Florence County prospect), Aurora, Florence County, Wisconsin, USA
39.0km (24.2 miles) ⓘDolfin pegmatite, Republic, Republic Township, Marquette County, Michigan, USA
42.4km (26.4 miles) ⓘRepublic Mine, Republic, Republic Township, Marquette County, Michigan, USA
43.5km (27.1 miles) ⓘRepublic, Republic Township, Marquette County, Michigan, USA
46.0km (28.6 miles) ⓘUnnamed pegmatite (2), M-95 roadcut, 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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