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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Ellestadite from
Wet Weather Quarry, Sky Blue Hill, Crestmore quarries, Crestmore, Jurupa Valley, Riverside County, California, USA


Locality type:Quarry
Classification
Species:'Ellestadite' (not an IMA approved species)
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Ellestadite data
Locality Data:Click here to view Wet Weather Quarry, Sky Blue Hill, Crestmore quarries, Crestmore, Jurupa Valley, Riverside County, California, USA
Data Identifiers
Mindat Occurrence Record ID:437114
Long-form Identifier:1:3:437114:4
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.
McConnell, Duncan (1937) The substitution of SiO4- and SO4-groups for PO4-groups in the apatite structure; ellestadite, the end-member. American Mineralogist, 22 (9). 977-986
 
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