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
Unnamed Borate prospects [21], Ryan, Furnace Creek Mining District (Furnace Creek Borate Mining District), Inyo County, California, USA


Locality type:Prospect
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 Unnamed Borate prospects [21], Ryan, Furnace Creek Mining District (Furnace Creek Borate Mining District), Inyo County, California, USA
Data Identifiers
Mindat Occurrence Record ID:326752
Long-form Identifier:1:3:326752:3
GUID (UUID V4):0
Nearest other occurrences of Colemanite
1.2km (0.8 miles) ⓘSigma Mine (White Monster Mine; Sigma-White Monster Mine), Ryan, Furnace Creek Mining District (Furnace Creek Borate Mining District), Inyo County, California, USA
1.3km (0.8 miles) ⓘBillie Mine, Ryan, Furnace Creek Mining District (Furnace Creek Borate Mining District), Inyo County, California, USA
1.4km (0.8 miles) ⓘUnnamed Borate prospects [16], Ryan, Furnace Creek Mining District (Furnace Creek Borate Mining District), Inyo County, California, USA
1.4km (0.9 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
1.7km (1.0 miles) ⓘHard Scramble claim, Ryan, Furnace Creek Mining District (Furnace Creek Borate Mining District), Inyo County, California, USA
2.0km (1.3 miles) ⓘUpper Biddy Mine (Upper Biddy McCarthy Mine; Big Biddy Mine), Biddy McCarthy Mines, Ryan, Furnace Creek Mining District (Furnace Creek Borate Mining District), Inyo County, California, USA
2.3km (1.4 miles) ⓘBoraxo Mine, Ryan, Furnace Creek Mining District (Furnace Creek Borate Mining District), Inyo County, California, USA
2.3km (1.4 miles) ⓘUnnamed Borate prospects [17], Ryan, Furnace Creek Mining District (Furnace Creek Borate Mining District), Inyo County, California, USA
2.6km (1.6 miles) ⓘGrand View Mine (Grandview Mine), Ryan, Furnace Creek Mining District (Furnace Creek Borate Mining District), Inyo County, California, USA
2.7km (1.7 miles) ⓘOliver claim (Neglect claim; Oliver Consolidated claim), Ryan, Furnace Creek Mining District (Furnace Creek Borate Mining District), Inyo County, California, USA
References
(2005) Mineral Resources Data System (MRDS), US Geological Survey.
 
and/or  
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