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
Boraxo Mine, Ryan, Furnace Creek Mining District (Furnace Creek Borate Mining District), Inyo County, California, USA


09252460017272734973616.jpg
Colemanite

Boraxo Mine, Ryan, Furnace Creek Mining District, Inyo County, California, USA
02506370017271981947211.jpg
Colemanite

Boraxo Mine, Ryan, Furnace Creek Mining District, Inyo County, California, USA
07955180017271982007508.jpg
Colemanite

Boraxo Mine, Ryan, Furnace Creek Mining District, Inyo County, California, USA
01169780017272020917113.jpg
Colemanite

Boraxo Mine, Ryan, Furnace Creek Mining District, Inyo County, California, USA
09252460017272734973616.jpg
Colemanite

Boraxo Mine, Ryan, Furnace Creek Mining District, Inyo County, California, USA
02506370017271981947211.jpg
Colemanite

Boraxo Mine, Ryan, Furnace Creek Mining District, Inyo County, California, USA
07955180017271982007508.jpg
Colemanite

Boraxo Mine, Ryan, Furnace Creek Mining District, Inyo County, California, USA
01169780017272020917113.jpg
Colemanite

Boraxo Mine, Ryan, Furnace Creek Mining District, Inyo County, California, USA
09252460017272734973616.jpg
Colemanite

Boraxo Mine, Ryan, Furnace Creek Mining District, Inyo County, California, USA
02506370017271981947211.jpg
Colemanite

Boraxo Mine, Ryan, Furnace Creek Mining District, Inyo County, California, USA
07955180017271982007508.jpg
Colemanite

Boraxo Mine, Ryan, Furnace Creek Mining District, Inyo County, California, USA
01169780017272020917113.jpg
Colemanite

Boraxo Mine, Ryan, Furnace Creek Mining District, Inyo County, California, USA
Locality type:Mine
Classification
Species:Colemanite
Formula:Ca[B3O4(OH)3] · H2O
Confirmation
Validity:Believed Valid
Associated Minerals:
Associates:Celestine
Hydroboracite
Probertite
Tunellite
Ulexite
Associated Minerals Based on Photo Data:
Hydroboracite19
Celestine5
Data
Mineral Data:Click here to view Colemanite data
Locality Data:Click here to view Boraxo Mine, Ryan, Furnace Creek Mining District (Furnace Creek Borate Mining District), Inyo County, California, USA
Photo GalleryView Gallery (29 photos)
Data Identifiers
Mindat Occurrence Record ID:22265
Long-form Identifier:1:3:22265:7
GUID (UUID V4):0
Localities for Colemanite in this Region
Thompson Mine, Boraxo Mine, Ryan, Furnace Creek Mining District (Furnace Creek Borate Mining District), Inyo County, California, USA
Nearest other occurrences of Colemanite
0.8km (0.5 miles) ⓘHard Scramble claim, Ryan, Furnace Creek Mining District (Furnace Creek Borate Mining District), Inyo County, California, USA
0.9km (0.6 miles) ⓘInyo Mine (Inyo prospect), Ryan, Furnace Creek Mining District (Furnace Creek Borate Mining District), Inyo County, California, USA
1.1km (0.7 miles) ⓘUnnamed Borate occurrence [3], Travertine Point, Furnace Creek Mining District (Furnace Creek Borate Mining District), Inyo County, California, USA
2.0km (1.3 miles) ⓘBillie Mine, Ryan, Furnace Creek Mining District (Furnace Creek Borate Mining District), Inyo County, California, USA
2.3km (1.4 miles) ⓘUnnamed Borate prospects [21], Ryan, Furnace Creek Mining District (Furnace Creek Borate Mining District), Inyo County, California, USA
2.5km (1.5 miles) ⓘUnnamed Borate prospects [17], Ryan, Furnace Creek Mining District (Furnace Creek Borate Mining District), Inyo County, California, USA
2.5km (1.6 miles) ⓘSigma Mine (White Monster Mine; Sigma-White Monster Mine), Ryan, Furnace Creek Mining District (Furnace Creek Borate Mining District), Inyo County, California, USA
2.6km (1.6 miles) ⓘUnnamed Borate prospects [16], Ryan, Furnace Creek Mining District (Furnace Creek Borate Mining District), Inyo County, California, USA
3.7km (2.3 miles) ⓘLower Biddy McCarthy Mine (Little Biddy Mine), Biddy McCarthy Mines, Ryan, Furnace Creek Mining District (Furnace Creek Borate Mining District), Inyo County, California, USA
4.2km (2.6 miles) ⓘDebely Mine (De Bely Mine), Ryan, Furnace Creek Mining District (Furnace Creek Borate Mining District), Inyo County, California, USA
References
Anonymous (1963), California Division of Mines and Geology, Mineral Information Service: California Mineral Production 1962: 16(1): 9
Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 154, 377
Pemberton, H. Earl (1983) Minerals of California. Van Nostrand Reinhold Company Inc.
Betts, John (n.d.) John Betts website listing.
 
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