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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Clinoptilolite-Na from
Barstow Formation, Rainbow Basin, Mud Hills (Strontium Hills), Barstow Mining District, San Bernardino County, California, USA


Locality type:Formation
Classification
Species:Clinoptilolite-Na
Formula:Na6(Si30Al6)O72 · 20H2O
Confirmation
Validity:Valid - Type Locality
Data
Mineral Data:Click here to view Clinoptilolite-Na data
Locality Data:Click here to view Barstow Formation, Rainbow Basin, Mud Hills (Strontium Hills), Barstow Mining District, San Bernardino County, California, USA
Data Identifiers
Mindat Occurrence Record ID:110386
Long-form Identifier:1:3:110386:1
GUID (UUID V4):0
Nearest other occurrences of Clinoptilolite-Na
55.7km (34.6 miles) ⓘHector, San Bernardino County, California, USA
63.0km (39.1 miles) ⓘRio Tinto Borax Mine, Kramer Borate deposit, Boron, Kern County, California, USA
References
Coombs, Douglas S., Alberti, Alberto, Armbruster, Thomas, Artioli, Gilberto, Colella, Carmine, Galli, Ermanno, Grice, Joel D., Liebau, Friedrich, Mandarino, Joseph A., Minato, Hideo, et al. (1997) Recommended nomenclature for zeolite minerals; report of the Subcommittee on Zeolites of the International Mineralogical Association, Commission on New Minerals and Mineral Names. The Canadian Mineralogist, 35 (6). 1571-1606
 
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