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
Reynolds prospect, Auburn, Androscoggin County, Maine, USA


Locality type:Prospect
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 Reynolds prospect, Auburn, Androscoggin County, Maine, USA
Data Identifiers
Mindat Occurrence Record ID:42085
Long-form Identifier:1:3:42085:1
GUID (UUID V4):0
Nearest other occurrences of Muscovite
4.2km (2.6 miles) ⓘAlfred Plourde Parkway Quarry, Lewiston, Androscoggin County, Maine, USA
5.1km (3.2 miles) ⓘBerry-Havey Quarry, Poland, Androscoggin County, Maine, USA
5.4km (3.4 miles) ⓘGreenlaw Quarry, East Mount Apatite Mining District, Auburn, Androscoggin County, Maine, USA
5.4km (3.4 miles) ⓘLittlefield Quarry, East Mount Apatite Mining District, Auburn, Androscoggin County, Maine, USA
5.4km (3.4 miles) ⓘMaine Feldspar Quarry, East Mount Apatite Mining District, Auburn, Androscoggin County, Maine, USA
5.4km (3.4 miles) ⓘSmith Quarry, East Mount Apatite Mining District, Auburn, Androscoggin County, Maine, USA
5.5km (3.4 miles) ⓘTurner Quarries, East Mount Apatite Mining District, Auburn, Androscoggin County, Maine, USA
5.5km (3.4 miles) ⓘHatch Farm prospect, East Mount Apatite Mining District, Auburn, Androscoggin County, Maine, USA
6.2km (3.9 miles) ⓘKeith Quarry (Towne Quarry), West Mount Apatite Mining District, Auburn, Androscoggin County, Maine, USA
6.3km (3.9 miles) ⓘPulsifer Quarry & Dionne extension, West Mount Apatite Mining District, Auburn, Androscoggin County, Maine, USA
References
King, Vandall T. (2000) Mineralogy of Maine Vol. 2 - Mining History, Gems, and Geology. Maine Geological Survey.
 
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