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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Biotite from
Little Singepole Mountain prospects, Paris, Oxford County, Maine, USA


Locality type:Prospect
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 Little Singepole Mountain prospects, Paris, Oxford County, Maine, USA
Data Identifiers
Mindat Occurrence Record ID:31685
Long-form Identifier:1:3:31685:9
GUID (UUID V4):0
Nearest other occurrences of Biotite
2.2km (1.4 miles) ⓘHibbs Quarry, Mount Rubellite, Hebron, Oxford County, Maine, USA
6.1km (3.8 miles) ⓘHooper Ledge Quarry, Paris, Oxford County, Maine, USA
6.7km (4.1 miles) ⓘWestinghouse Quarry, Buckfield, Oxford County, Maine, USA
6.7km (4.2 miles) ⓘMount Mica Quarry, Paris, Oxford County, Maine, USA
7.9km (4.9 miles) ⓘWhispering Pines Quarry, Paris, Oxford County, Maine, USA
8.4km (5.2 miles) ⓘBennett Quarry, Buckfield, Oxford County, Maine, USA
9.1km (5.7 miles) ⓘRyerson Hill Quarries, Paris, Oxford County, Maine, USA
13.8km (8.6 miles) ⓘPhillips Quarry, Minot, Androscoggin County, Maine, USA
15.9km (9.9 miles) ⓘA.C. Perham Quarry, West Paris, Oxford County, Maine, USA
17.3km (10.7 miles) ⓘNubble Quarry, Greenwood, Oxford County, Maine, USA
References
Cameron, Eugene N.
Cameron, Eugene N., Larrabee, David M., McNair, Andrew H., Page, James J., Stewart, Glen W., Shainin, Vincent E. (1954) Pegmatite Investigations, 1942-45, in New England. Geological Survey Professional Paper 255. US Geological Survey doi:10.3133/pp255
Thompson, Woodrow B., Joyner, Ronald L., Woodman, Raymond G., King, Vandall T. (1998) Bulletin (41), A Collector's Guide to Maine Mineral Localities (3rd ed.) Maine Geological Survey
 
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