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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Muscovite from
Donahue Quarry (Donahue Prospect), Albany, Oxford County, Maine, USA


Locality type:Quarry
Classification
Species:Muscovite
Formula:KAl2(AlSi3O10)(OH)2
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Muscovite data
Locality Data:Click here to view Donahue Quarry (Donahue Prospect), Albany, Oxford County, Maine, USA
Data Identifiers
Mindat Occurrence Record ID:33065
Long-form Identifier:1:3:33065:5
GUID (UUID V4):0
Nearest other occurrences of Muscovite
3.0km (1.9 miles) ⓘSongo Pond Quarry (Kimball Ledge Quarry), Albany, Oxford County, Maine, USA
3.5km (2.2 miles) ⓘBumpus Quarry, Albany, Oxford County, Maine, USA
5.9km (3.7 miles) ⓘRound Mountain Rose Quartz locality, Albany, Oxford County, Maine, USA
8.1km (5.1 miles) ⓘFlint Mountain prospects, Albany, Oxford County, Maine, USA
8.2km (5.1 miles) ⓘVirginia Lake prospect, Stoneham, Oxford County, Maine, USA
8.5km (5.3 miles) ⓘShirley Brook Topaz locality, Stoneham, Oxford County, Maine, USA
8.6km (5.4 miles) ⓘStearns Quarry, Albany, Oxford County, Maine, USA
8.8km (5.5 miles) ⓘTiger Bill Quarries, Uncle Tom Mountain, Greenwood, Oxford County, Maine, USA
8.8km (5.5 miles) ⓘWentworth Quarry, Albany, Oxford County, Maine, USA
9.0km (5.6 miles) ⓘFrench Mountain prospect, Albany, 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
King, Vandall - Ed. (2009) Maine Feldspar, Families, and Feuds - Oxford County Mining History. New England Historical Publications.
 
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