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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Gahnite from
Staples Quarry, Topsham, Sagadahoc County, Maine, USA


Locality type:Quarry
Classification
Species:Gahnite
Formula:ZnAl2O4
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Gahnite data
Locality Data:Click here to view Staples Quarry, Topsham, Sagadahoc County, Maine, USA
Data Identifiers
Mindat Occurrence Record ID:514455
Long-form Identifier:1:3:514455:6
GUID (UUID V4):0
Nearest other occurrences of Gahnite
0.4km (0.2 miles) ⓘFisher Quarry, Topsham, Sagadahoc County, Maine, USA
8.6km (5.4 miles) ⓘCoombs Quarries, Bowdoin, Sagadahoc County, Maine, USA
30.6km (19.0 miles) ⓘMaine Feldspar Quarry, East Mount Apatite Mining District, Auburn, Androscoggin County, Maine, USA
31.4km (19.5 miles) ⓘKeith Quarry (Towne Quarry), West Mount Apatite Mining District, Auburn, Androscoggin County, Maine, USA
31.5km (19.5 miles) ⓘPulsifer Quarry & Dionne extension, West Mount Apatite Mining District, Auburn, Androscoggin County, Maine, USA
31.6km (19.6 miles) ⓘWade Quarry (Androscoggin Tourmaline prospect), West Mount Apatite Mining District, Auburn, Androscoggin County, Maine, USA
31.6km (19.6 miles) ⓘGroves Quarry (Hole in the Ground Quarry), West Mount Apatite Mining District, Auburn, Androscoggin County, Maine, USA
60.3km (37.5 miles) ⓘCobble Hill Quarry (George Howe prospect), West Paris, Oxford County, Maine, USA
65.2km (40.5 miles) ⓘWitt Hill Chrysoberyl locality, Greenwood, Oxford County, Maine, USA
65.9km (40.9 miles) ⓘOhtonen Quarry, Greenwood, Oxford County, Maine, USA
References
King, Vandall T., Foord, Eugene E. (1994) Mineralogy of Maine Vol. 1 - Descriptive mineralogy. Maine Geological Survey.
King, Vandall T. (2000) Mineralogy of Maine Vol. 2 - Mining History, Gems, and Geology. Maine Geological Survey.
 
and/or  
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