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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Ceylonite from
Commercial Quarry, Sky Blue Hill, Crestmore quarries, Crestmore, Jurupa Valley, Riverside County, California, USA


Locality type:Quarry
Classification
Species:Spinel var: Ceylonite
Formula:MgAl2O4
Comments:Occurs near stations 13 & 14 as translucent grains 1 to 4 mm long, with pale green grossular and granular calcite.
Colour:Blue, dark blue-green
Confirmation
Validity:Believed Valid
Associated Minerals:
Associates:Calcite
Grossular
Data
Mineral Data:Click here to view Ceylonite data
Locality Data:Click here to view Commercial Quarry, Sky Blue Hill, Crestmore quarries, Crestmore, Jurupa Valley, Riverside County, California, USA
Data Identifiers
Mindat Occurrence Record ID:688183
Long-form Identifier:1:3:688183:2
GUID (UUID V4):0
References
Woodford, A.O., Crippen, R.A., Garner, K.B. (1941) Section Across Commercial Quarry, Crestmore, California. American Mineralogist: 26: 351-381.p.373
 
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