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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Cryptomelane from
Songo Pond Quarry (Kimball Ledge Quarry), Albany, Oxford County, Maine, USA


Locality type:Quarry
Classification
Species:Cryptomelane
Formula:K(Mn74+Mn3+)O16
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Cryptomelane data
Locality Data:Click here to view Songo Pond Quarry (Kimball Ledge Quarry), Albany, Oxford County, Maine, USA
Data Identifiers
Mindat Occurrence Record ID:514429
Long-form Identifier:1:3:514429:7
GUID (UUID V4):0
Nearest other occurrences of Cryptomelane
4.3km (2.7 miles) ⓘBumpus Quarry, Albany, Oxford County, Maine, USA
13.6km (8.4 miles) ⓘTamminen Quarry, Greenwood, Oxford County, Maine, USA
19.6km (12.2 miles) ⓘLord Hill Quarry (Lord Hill Mine), Stoneham, Oxford County, Maine, USA
21.9km (13.6 miles) ⓘDunton Gem Quarry, Newry, Oxford County, Maine, USA
22.0km (13.7 miles) ⓘCrooker Gem Pegmatite Quarries, Newry, Oxford County, Maine, USA
22.1km (13.7 miles) ⓘBell pit, Newry, Oxford County, Maine, USA
22.1km (13.7 miles) ⓘNevel Quarry, Newry, Oxford County, Maine, USA
35.0km (21.8 miles) ⓘMount Rubellite Quarries, Mount Rubellite, Hebron, Oxford County, Maine, USA
49.5km (30.8 miles) ⓘBerry-Havey Quarry, Poland, Androscoggin County, Maine, USA
References
King, Vandall - Ed. (2009) Maine Feldspar, Families, and Feuds - Oxford County Mining History. New England Historical Publications.
 
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