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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Hureaulite from
Etta Mine, Keystone, Keystone Mining District, Pennington County, South Dakota, USA


Locality type:Mine
Classification
Species:Hureaulite
Formula:Mn52+(PO3OH)2(PO4)2 · 4H2O
Comments:Occurs in a lithia pegmatite.
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Hureaulite data
Locality Data:Click here to view Etta Mine, Keystone, Keystone Mining District, Pennington County, South Dakota, USA
Data Identifiers
Mindat Occurrence Record ID:64575
Long-form Identifier:1:3:64575:1
GUID (UUID V4):0
Nearest other occurrences of Hureaulite
1.1km (0.7 miles) ⓘWhite Cap Mine, Keystone, Keystone Mining District, Pennington County, South Dakota, USA
2.4km (1.5 miles) ⓘDan Patch Mine, Keystone, Keystone Mining District, Pennington County, South Dakota, USA
3.4km (2.1 miles) ⓘBig Chief Mine, Glendale, Keystone Mining District, Pennington County, South Dakota, USA
4.1km (2.5 miles) ⓘBarker-Ferguson Mine, Keystone, Keystone Mining District, Pennington County, South Dakota, USA
10.7km (6.7 miles) ⓘNovember Mine, The Needles, Custer State Park, Custer County, South Dakota, USA
14.3km (8.9 miles) ⓘTin Queen Mine (White Blowout Mine), Hill City Mining District, Pennington County, South Dakota, USA
16.8km (10.4 miles) ⓘHot Shot mine, Custer, Custer Mining District, Custer County, South Dakota, USA
16.8km (10.4 miles) ⓘElkhorn Mine (Tinsley Mine), Custer, Custer Mining District, Custer County, South Dakota, USA
18.3km (11.4 miles) ⓘCuster Mountain lode (Snookum mine), Custer, Custer Mining District, Custer County, South Dakota, USA
18.5km (11.5 miles) ⓘBull Moose Mine, Custer, Custer Mining District, Custer County, South Dakota, USA
References
Rocks & Minerals: 57: 160
Rocks & Minerals: 60: 110, 112.
 
and/or  
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