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


Locality type:Quarry
Classification
Species:Fluorellestadite
Formula:Ca5(SiO4)1.5(SO4)1.5F
Comments:Occurs as grains to 3 mm diameter above station 29. Also, crystals 5 to 10 mm wide were found alongside giant wollastonite crystals in blue calcite in great blocks which fell into the quarry from the ridge SW of the Lone Star Quarry. Occurs as numerous patches and veinlets in Wet Weather blocks which fell from the steep wall just NW of station 8.
Colour:Pale rose-coloured
Confirmation
Validity:Believed Valid
Associated Minerals:
Associates:Calcite
Chlorite Group
Crestmoreite
Wollastonite
Data
Mineral Data:Click here to view Fluorellestadite 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:688179
Long-form Identifier:1:3:688179:5
GUID (UUID V4):0
Nearest other occurrences of Fluorellestadite
0.8km (0.5 miles) ⓘCommercial Quarry, Sky Blue Hill, Crestmore quarries, Crestmore, Jurupa Valley, Riverside County, California, USA
0.9km (0.6 miles) ⓘCrestmore quarries, Crestmore, Jurupa Valley, Riverside County, California, USA
4.6km (2.8 miles) ⓘJensen Quarry, Jurupa Mountains, Jurupa Valley, Riverside County, California, USA
References
Woodford, A.O., Crippen, R.A., Garner, K.B. (1941) Section Across Commercial Quarry, Crestmore, California. American Mineralogist: 26: 351-381.
 
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