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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Natron from
Owens Lake, Olancha, Owens Valley, Inyo County, California, USA


Locality type:Dry Lake
Classification
Species:Natron
Formula:Na2CO3 · 10H2O
Comments:Occurs dissolved in lake waters.
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Natron data
Locality Data:Click here to view Owens Lake, Olancha, Owens Valley, Inyo County, California, USA
Data Identifiers
Mindat Occurrence Record ID:8030
Long-form Identifier:1:3:8030:9
GUID (UUID V4):0
References
Its occurrence and utilization: USGS Bulletin 60: 75
Chatard, T.M. (1890b), Natural soda
Palache, Charles; Berman, Harry; Frondel, Clifford (1951) The System of Mineralogy (7th ed.) Vol. 2 - Halides, Nitrates, Borates, Carbonates, Sulfates, Phosphates, Arsenates, Tungstates, Molybdates, Etc. John Wiley and Sons.
Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 277-278.
Smith, George I, Friedman, Irving, McLaughlin, Robert J (1987) Studies of Quaternary saline lakes—III. Mineral, chemical, and isotopic evidence of salt solution and crystallization processes in Owens Lake, California, 1969–1971. Geochimica et Cosmochimica Acta, 51 (4) 811-827 doi:10.1016/0016-7037(87)90095-0pp.813-827
 
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