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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Sphalerite from
Joker and Catherine prospect (San Juan Creek project; Laker and Catherine prospect), San Juan Creek, Dana Point, Dana Point [cape], Orange County, California, USA


Locality type:Prospect
Classification
Species:Sphalerite
Formula:ZnS
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Sphalerite data
Locality Data:Click here to view Joker and Catherine prospect (San Juan Creek project; Laker and Catherine prospect), San Juan Creek, Dana Point, Dana Point [cape], Orange County, California, USA
Data Identifiers
Mindat Occurrence Record ID:677132
Long-form Identifier:1:3:677132:4
GUID (UUID V4):0
Nearest other occurrences of Sphalerite
8.5km (5.3 miles) ⓘOrtega Mine (Old Dominion Mine), Rancho Santa Margarita, Orange County, California, USA
10.4km (6.5 miles) ⓘYaegerr Mines (Yeager claim; Quartz), Trabuco Canyon [town], Orange County, California, USA
12.8km (8.0 miles) ⓘWilhunt Mine (Morrow group; Wilhunt Lead - Silver Mine), Trabuco Canyon [town], Orange County, California, USA
20.3km (12.6 miles) ⓘBlue Light Mine (Harvey; Silverado; Dunlap Light Blue Mine), Silverado, Orange County, California, USA
27.7km (17.2 miles) ⓘCorona Lead-Zinc Mine, Corona, Riverside County, California, USA
48.6km (30.2 miles) ⓘJensen Quarry, Jurupa Mountains, Jurupa Valley, Riverside County, California, USA
48.9km (30.4 miles) ⓘCommercial Quarry, Sky Blue Hill, Crestmore quarries, Crestmore, Jurupa Valley, Riverside County, California, USA
70.6km (43.9 miles) ⓘCalifornia-Hercules Mine (California Hercules Mine), Scotland, Lytle Creek District, San Bernardino County, California, USA
71.6km (44.5 miles) ⓘCucamonga Mine (Cucamonga Zinc Mine; Blew Jordam Mine), Cucamonga Peak, Lytle Creek District, San Bernardino County, California, USA
74.0km (46.0 miles) ⓘFelix Mine, Azusa (Dalton), Los Angeles County, California, USA
References
Larsen, Esper Signius, Donald L. Everhart & Richard H. Merriam (1951), Crystalline rocks of southwestern California: California Division Mines Bulletin 159, 136 pp.: 48
Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 311, 343.
 
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