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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Magnesite from
Jensen Quarry, Jurupa Mountains, Jurupa Valley, Riverside County, California, USA


Locality type:Quarry
Classification
Species:Magnesite
Formula:MgCO3
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Magnesite data
Locality Data:Click here to view Jensen Quarry, Jurupa Mountains, Jurupa Valley, Riverside County, California, USA
Data Identifiers
Mindat Occurrence Record ID:7179
Long-form Identifier:1:3:7179:6
GUID (UUID V4):0
Nearest other occurrences of Magnesite
4.3km (2.7 miles) ⓘCommercial Quarry, Sky Blue Hill, Crestmore quarries, Crestmore, Jurupa Valley, Riverside County, California, USA
40.4km (25.1 miles) ⓘHeath Canyon flood control channel, Wrightwood, San Bernardino County, California, USA
51.1km (31.8 miles) ⓘNichols Magnesite deposit, Hemet, Riverside County, California, USA
52.3km (32.5 miles) ⓘHemet Magnesite Mine (Hemet Magnesite property), Winchester, Menifee Mining District (Auld Mining District), Riverside County, California, USA
53.8km (33.5 miles) ⓘHemet Magnesite Mine (Hemet Mine), Hemet, Riverside County, California, USA
61.4km (38.1 miles) ⓘMetropolitan Portal rock stockpile, Cabazon, Riverside County, California, USA
62.0km (38.6 miles) ⓘSugar Loaf Mountain prospect, Woodlands (Erwin Lake), Baldwin Lake District, San Bernardino County, California, USA
76.0km (47.2 miles) ⓘBall Iron deposits (Ball Mine; Ball Magnesite deposit; Ball; Red Seal), Sidewinder Mountain, Rodman Mountains, Belleville Mining District, San Bernardino County, California, USA
77.1km (47.9 miles) ⓘRichter deposit (Richter Dolomite deposit; Marter claims), Lucerne Valley, Lucerne Valley Limestone District, San Bernardino County, California, USA
81.1km (50.4 miles) ⓘUnnamed Dolomite-Magnesite deposit [5] (Unnamed Dolomite deposit), Goat Mountain, Ord Mountains, Ord Mining District, San Bernardino County, California, USA
References
DeVito, Fred, Ordway, Al (1984) The Jensen Quarry, Riverside County, California. The Mineralogical Record, 15 (5) 273-290pp.280-280
 
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