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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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Almandine from
Turner Quarries, East Mount Apatite Mining District, Auburn, Androscoggin County, Maine, USA


09505460017271980647500.jpg
Almandine

Turner Quarries, East Mount Apatite Mining District, Auburn, Androscoggin County, Maine, USA
09505460017271980647500.jpg
Almandine

Turner Quarries, East Mount Apatite Mining District, Auburn, Androscoggin County, Maine, USA
09505460017271980647500.jpg
Almandine

Turner Quarries, East Mount Apatite Mining District, Auburn, Androscoggin County, Maine, USA
Locality type:Quarry
Classification
Species:Almandine
Formula:Fe32+Al2(SiO4)3
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Almandine data
Locality Data:Click here to view Turner Quarries, East Mount Apatite Mining District, Auburn, Androscoggin County, Maine, USA
Data Identifiers
Mindat Occurrence Record ID:31358
Long-form Identifier:1:3:31358:8
GUID (UUID V4):0
Nearest other occurrences of Almandine
0.3km (0.2 miles) ⓘMaine Feldspar Quarry, East Mount Apatite Mining District, Auburn, Androscoggin County, Maine, USA
0.5km (0.3 miles) ⓘGreenlaw Quarry, East Mount Apatite Mining District, Auburn, Androscoggin County, Maine, USA
0.7km (0.5 miles) ⓘKeith Quarry (Towne Quarry), West Mount Apatite Mining District, Auburn, Androscoggin County, Maine, USA
0.8km (0.5 miles) ⓘPulsifer Quarry & Dionne extension, West Mount Apatite Mining District, Auburn, Androscoggin County, Maine, USA
0.9km (0.6 miles) ⓘWade Quarry (Androscoggin Tourmaline prospect), West Mount Apatite Mining District, Auburn, Androscoggin County, Maine, USA
1.0km (0.6 miles) ⓘGroves Quarry (Hole in the Ground Quarry), West Mount Apatite Mining District, Auburn, Androscoggin County, Maine, USA
1.6km (1.0 miles) ⓘBerry-Havey Quarry, Poland, Androscoggin County, Maine, USA
1.6km (1.0 miles) ⓘKennedy Quarry, Auburn, Androscoggin County, Maine, USA
5.1km (3.2 miles) ⓘPhillips Quarry, Minot, Androscoggin County, Maine, USA
5.2km (3.3 miles) ⓘLaFlamme Quarry, Minot, Androscoggin County, Maine, USA
References
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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