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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Colemanite from
Fort Cady deposit (Fort Cady Solution Mine; Fort Cady project), Hector, San Bernardino County, California, USA


Locality type:Deposit
Classification
Species:Colemanite
Formula:Ca[B3O4(OH)3] · H2O
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Colemanite data
Locality Data:Click here to view Fort Cady deposit (Fort Cady Solution Mine; Fort Cady project), Hector, San Bernardino County, California, USA
Data Identifiers
Mindat Occurrence Record ID:332000
Long-form Identifier:1:3:332000:6
GUID (UUID V4):0
Nearest other occurrences of Colemanite
5.3km (3.3 miles) ⓘHector, San Bernardino County, California, USA
40.9km (25.4 miles) ⓘCentennial Mine [1], Yermo (Marian; Marion; Otis), Calico District (Daggett District; Calico-Daggett area), Calico Mts (Calico Hills), San Bernardino County, California, USA
41.8km (26.0 miles) ⓘPacific Mine (Pacific Coast Borax Company properties; Borate; Borate Colemanite Mines; Calico; Old Borate; Pacific Coast Borax Co. workings), Calico, Calico District (Daggett District; Calico-Daggett area), Calico Mts (Calico Hills), San Bernardino County, California, USA
41.9km (26.0 miles) ⓘColumbus Mine (Gem Borate Mine; Gem Mine), Daggett Ridge, Belleville Mining District, San Bernardino County, California, USA
99.3km (61.7 miles) ⓘOwl Hole Springs, Owlshead Mountains, San Bernardino County, California, USA
References
(2005) Mineral Resources Data System (MRDS), US Geological Survey.
 
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