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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Antigorite from
Del Puerto Canyon (Arroyo del Puerto), Copper Mountain, Black Wonder Mining District, Stanislaus County, California, USA


Locality type:Canyon
Classification
Species:Antigorite
Formula:Mg3(Si2O5)(OH)4
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Antigorite data
Locality Data:Click here to view Del Puerto Canyon (Arroyo del Puerto), Copper Mountain, Black Wonder Mining District, Stanislaus County, California, USA
Data Identifiers
Mindat Occurrence Record ID:770233
Long-form Identifier:1:3:770233:4
GUID (UUID V4):0
Nearest other occurrences of Antigorite
22.2km (13.8 miles) ⓘBlack Bart Mine group, Red Mountain, Black Wonder Mining District, Stanislaus County, California, USA
36.6km (22.8 miles) ⓘMendenhall No. 1 Mine (Cedar Mountain Mine; Mendenhall Chrome Mines; Mendenhall Mine; Newman Mine), Cedar Mountain, Cedar Mountain Mining District, Alameda County, California, USA
83.4km (51.8 miles) ⓘMackey Mine, Stent, Jamestown District, Tuolumne County, California, USA
84.6km (52.6 miles) ⓘPremier Asbestos Mine, Jamestown, Jamestown District, Tuolumne County, California, USA
86.1km (53.5 miles) ⓘCarson Hill, Carson Hill Mining District (Melones Mining District), Calaveras County, California, USA
91.8km (57.1 miles) ⓘFord Mine (Apex Mine), San Andreas, San Andreas Mining District, Calaveras County, California, USA
93.4km (58.0 miles) ⓘPacific Cement and Aggregate Company quarry, Santa Cruz, Santa Cruz County, California, USA
94.5km (58.7 miles) ⓘPonderosa prospect, Soapstone Hill, Murphys, Murphys Mining District (Esmeralda Mining District; Sperry Mining District), East Belt, Calaveras County, California, USA
94.5km (58.7 miles) ⓘUnknown Cr prospect [11], Soapstone Hill, Murphys, Murphys Mining District (Esmeralda Mining District; Sperry Mining District), East Belt, Calaveras County, California, USA
References
Hawkes, H. E., Jr.
Wells, F. G.
Wheeler, D. P., Jr. (1942) Chromite and quicksilver deposits of the Del Puerto area, Stanislaus County, California. USGS Bulletin 936D
 
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