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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Cookeite from
Fisher Quarry, Topsham, Sagadahoc County, Maine, USA


07570670017370105885745.jpg
Cookeite, etc.

Fisher Quarry, Topsham, Sagadahoc County, Maine, USA
08461060017272013961191.jpg
Cookeite, etc.

Fisher Quarry, Topsham, Sagadahoc County, Maine, USA
08570740017553443437743.jpg
Cookeite, etc.

Fisher Quarry, Topsham, Sagadahoc County, Maine, USA
04458280017553148912448.jpg
Cookeite, etc.

Fisher Quarry, Topsham, Sagadahoc County, Maine, USA
07786640017363754197790.jpg
Cookeite, etc.

Fisher Quarry, Topsham, Sagadahoc County, Maine, USA
04558010017369875935646.jpg
Cookeite, etc.

Fisher Quarry, Topsham, Sagadahoc County, Maine, USA
09962730017553442813643.jpg
Cookeite, etc.

Fisher Quarry, Topsham, Sagadahoc County, Maine, USA
04458280017553148912448.jpg
Cookeite, etc.

Fisher Quarry, Topsham, Sagadahoc County, Maine, USA
07570670017370105885745.jpg
Cookeite, etc.

Fisher Quarry, Topsham, Sagadahoc County, Maine, USA
08461060017272013961191.jpg
Cookeite, etc.

Fisher Quarry, Topsham, Sagadahoc County, Maine, USA
01837190017553562604434.jpg
Cookeite, etc.

Fisher Quarry, Topsham, Sagadahoc County, Maine, USA
09162160017553562591726.jpg
Cookeite, etc.

Fisher Quarry, Topsham, Sagadahoc County, Maine, USA
Locality type:Quarry
Classification
Species:Cookeite
Formula:(LiAl4◻)[AlSi3O10](OH)8
Confirmation
Validity:Believed Valid
Associated Minerals Based on Photo Data:
Elbaite4
Feldspar Group3
Muscovite2
Data
Mineral Data:Click here to view Cookeite data
Locality Data:Click here to view Fisher Quarry, Topsham, Sagadahoc County, Maine, USA
Photo GalleryView Gallery (3 photos)
Data Identifiers
Mindat Occurrence Record ID:1574483
Long-form Identifier:1:3:1574483:4
GUID (UUID V4):0
Nearest other occurrences of Cookeite
25.1km (15.6 miles) ⓘHoward-Collins Quarry, Georgetown, Sagadahoc County, Maine, USA
30.6km (19.0 miles) ⓘBerry-Havey Quarry, Poland, Androscoggin County, Maine, USA
30.8km (19.1 miles) ⓘGreenlaw Quarry, East Mount Apatite Mining District, Auburn, Androscoggin County, Maine, USA
30.9km (19.2 miles) ⓘMaine Feldspar Quarry, East Mount Apatite Mining District, Auburn, Androscoggin County, Maine, USA
30.9km (19.2 miles) ⓘTurner Quarries, East Mount Apatite Mining District, Auburn, Androscoggin County, Maine, USA
31.0km (19.2 miles) ⓘHatch Farm prospect, East Mount Apatite Mining District, Auburn, Androscoggin County, Maine, USA
31.7km (19.7 miles) ⓘKeith Quarry (Towne Quarry), West Mount Apatite Mining District, Auburn, Androscoggin County, Maine, USA
31.8km (19.7 miles) ⓘPulsifer Quarry & Dionne extension, West Mount Apatite Mining District, Auburn, Androscoggin County, Maine, USA
31.9km (19.8 miles) ⓘWade Quarry (Androscoggin Tourmaline prospect), West Mount Apatite Mining District, Auburn, Androscoggin County, Maine, USA
31.9km (19.8 miles) ⓘGroves Quarry (Hole in the Ground Quarry), West Mount Apatite Mining District, Auburn, Androscoggin County, Maine, USA
References
Yatesvitch, G. M. (1935) The crystallography of herderite from Topsham, Maine. American Mineralogist, 20 (6) 426-437
 
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