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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Pyrrhotite from
Henshaw Quarry, Bloomington, San Bernardino County, California, USA


Locality type:Quarry
Classification
Species:Pyrrhotite
Formula:Fe1-xS
Comments:Crystals common in marble and calcite.
Confirmation
Validity:Believed Valid
Associated Minerals:
Associates:Calcite
Data
Mineral Data:Click here to view Pyrrhotite data
Locality Data:Click here to view Henshaw Quarry, Bloomington, San Bernardino County, California, USA
Data Identifiers
Mindat Occurrence Record ID:686233
Long-form Identifier:1:3:686233:6
GUID (UUID V4):0
Nearest other occurrences of Pyrrhotite
3.2km (2.0 miles) ⓘJensen Quarry, Jurupa Mountains, Jurupa Valley, Riverside County, California, USA
3.8km (2.4 miles) ⓘCommercial Quarry, Sky Blue Hill, Crestmore quarries, Crestmore, Jurupa Valley, Riverside County, California, USA
4.5km (2.8 miles) ⓘWet Weather Quarry, Sky Blue Hill, Crestmore quarries, Crestmore, Jurupa Valley, Riverside County, California, USA
6.9km (4.3 miles) ⓘOld City Quarry (City Quarry; North Hill Quarry; Quarry Hill; Fairmount), Riverside, Riverside County, California, USA
42.7km (26.5 miles) ⓘLong Canyon, Sugarloaf (Mount Downey), Coto de Caza, Orange County, California, USA
49.7km (30.9 miles) ⓘWhite Knob Quarry, Lucerne Valley, Lucerne Valley Limestone District, San Bernardino County, California, USA
51.3km (31.9 miles) ⓘJoker and Catherine prospect (San Juan Creek project; Laker and Catherine prospect), San Juan Creek, Dana Point, Dana Point [cape], Orange County, California, USA
95.3km (59.2 miles) ⓘPacoima Canyon, Los Angeles County, California, USA
References
Cooney, R.L. (1956), The mineralogy of the Jensen and Henshaw quarries near Riverside, California: Unpublished Master’s thesis, University of California at Los Angeles: 35
Pemberton, H. Earl (1983) Minerals of California. Van Nostrand Reinhold Company Inc.
 
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