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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Fluorite from
Columbia Mine (April Fool claim; Belo Horizonte claim; California Gem Mine; Columbia Gem Mine; Desert Rose claim; San Jacinto Gem Mine; Discovery), Thomas Mountain, Thomas Mountain [town], Cahuilla Mining District, Riverside County, California, USA


Locality type:Mine
Classification
Species:Fluorite
Formula:CaF2
Comments:Most likely apatite
Confirmation
Validity:Erroneously Reported
Data
Mineral Data:Click here to view Fluorite data
Locality Data:Click here to view Columbia Mine (April Fool claim; Belo Horizonte claim; California Gem Mine; Columbia Gem Mine; Desert Rose claim; San Jacinto Gem Mine; Discovery), Thomas Mountain, Thomas Mountain [town], Cahuilla Mining District, Riverside County, California, USA
Data Identifiers
Mindat Occurrence Record ID:480581
Long-form Identifier:1:3:480581:6
GUID (UUID V4):0
Nearest other occurrences of Fluorite
31.0km (19.3 miles) ⓘMountain Lily Mine (Emeralite No. 2 claim; Gem Mine No. 1 claim; Ware mine), Aguanga Mountain, Oak Grove, Aguanga Mountain Mining District (Smith Mountain Mining District), San Diego County, California, USA
82.2km (51.0 miles) ⓘRock Corral, Landers, San Bernardino County, California, USA
82.9km (51.5 miles) ⓘCajalco Mine (Cajalco Tin Mine; Cajalco Dumortierite occurrence), El Cerrito, Riverside County, California, USA
87.4km (54.3 miles) ⓘOrocopia Fluorspar Mine (Holmestake Mine), Chiriaco Summit (Shaver Summit), Dos Palmas District, Orocopia Mts (Dos Palmas Mts), Riverside County, California, USA
References
Kunz, George F. (1905) Gems, Jewelers' Materials, and Ornamental Stones of California. Bulletin 37 (2nd ed.) California State Mining Bureau
 
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