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
Friday Mine, Julian, Julian Mining District, San Diego County, California, USA


Locality type:Mine
Classification
Species:Pyrrhotite
Formula:Fe1-xS
Confirmation
Validity:Believed Valid
Associated Minerals:
Associates:Hydromagnesite
Pentlandite
Pyrite
Violarite
Data
Mineral Data:Click here to view Pyrrhotite data
Locality Data:Click here to view Friday Mine, Julian, Julian Mining District, San Diego County, California, USA
Data Identifiers
Mindat Occurrence Record ID:65614
Long-form Identifier:1:3:65614:6
GUID (UUID V4):0
Nearest other occurrences of Pyrrhotite
4.6km (2.9 miles) ⓘSouth Hubbard, Banner, Banner Mining District, San Diego County, California, USA
6.4km (4.0 miles) ⓘGolden Chariot Mine (Golden Chariot claims; Chariot North claims; Ida Claire; Eureka group), Julian, Julian Mining District, San Diego County, California, USA
14.3km (8.9 miles) ⓘGrapevine Star Mine (Dewey group; Ready Relief), Grapevine Canyon, Ranchita, Volcan Mountains, San Diego County, California, USA
22.8km (14.2 miles) ⓘOld Ironsides prospect, Mesa Grande, Mesa Grande Mining District, San Diego County, California, USA
28.7km (17.9 miles) ⓘEl Capitan Quarry, Lakeside, San Diego County, California, USA
38.7km (24.1 miles) ⓘEcho Mine, Lakeside, San Diego County, California, USA
82.1km (51.0 miles) ⓘMadrelena Mine, Tres Pozos, Baja California, Mexico
96.1km (59.7 miles) ⓘSalton Sea Scientific Drilling project well, Salton Sea, Imperial County, California, USA
99.7km (61.9 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
References
Dana 7:I:264
Short, M. N., Shannon, Earl V. (1930) Violarite and other rare nickel sulphides. American Mineralogist, 15 (1) 1-22
 
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