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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Howlite from
Daggett, Calico District (Daggett District; Calico-Daggett area), Calico Mts (Calico Hills), San Bernardino County, California, USA


06221260017370700863819.jpg
Howlite

Daggett, Calico District, Calico Mts, San Bernardino County, California, USA
06221260017370700863819.jpg
Howlite

Daggett, Calico District, Calico Mts, San Bernardino County, California, USA
04334710017272011161115.jpg
Howlite

Daggett, Calico District, Calico Mts, San Bernardino County, California, USA
Classification
Species:Howlite
Formula:Ca2B5SiO9(OH)5
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Howlite data
Locality Data:Click here to view Daggett, Calico District (Daggett District; Calico-Daggett area), Calico Mts (Calico Hills), San Bernardino County, California, USA
Data Identifiers
Mindat Occurrence Record ID:6293
Long-form Identifier:1:3:6293:0
GUID (UUID V4):0
Nearest other occurrences of Howlite
11.6km (7.2 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
61.6km (38.3 miles) ⓘUnnamed Howlite occurrence [2], Kramer Junction (Beecher's Corners; Beechers Corners; Four Corners), East Kramer Borate area (East Kramer Colemanite area), East Kramer Mining District, San Bernardino County, California, USA
65.8km (40.9 miles) ⓘUnnamed Howlite occurrences [1], Saddleback Mountain, East Kramer Borate area (East Kramer Colemanite area), East Kramer Mining District, San Bernardino County, California, USA
74.3km (46.2 miles) ⓘCalifornia Borate Company property, Kramer Borate deposit, Boron, Kern County, California, USA
75.5km (46.9 miles) ⓘKramer Borate deposit, Boron, Kern County, California, USA
References
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.
 
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