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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Montebrasite from
Bob Ingersoll Mine, Keystone, Keystone Mining District, Pennington County, South Dakota, USA


Locality type:Mine
Classification
Species:Montebrasite
Formula:LiAl(PO4)(OH)
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Montebrasite data
Locality Data:Click here to view Bob Ingersoll Mine, Keystone, Keystone Mining District, Pennington County, South Dakota, USA
Data Identifiers
Mindat Occurrence Record ID:49733
Long-form Identifier:1:3:49733:0
GUID (UUID V4):0
Nearest other occurrences of Montebrasite
3.5km (2.2 miles) ⓘPeerless Mine, Keystone, Keystone Mining District, Pennington County, South Dakota, USA
5.0km (3.1 miles) ⓘHugo Mine, Keystone, Keystone Mining District, Pennington County, South Dakota, USA
5.2km (3.2 miles) ⓘWhite Cap Mine, Keystone, Keystone Mining District, Pennington County, South Dakota, USA
15.6km (9.7 miles) ⓘHigh Climb Mine, Custer, Custer Mining District, Custer County, South Dakota, USA
19.6km (12.2 miles) ⓘCuster Mountain lode (Snookum mine), Custer, Custer Mining District, Custer County, South Dakota, USA
24.2km (15.0 miles) ⓘRoss Mine, Berne, Custer Mining District, Custer County, South Dakota, USA
27.8km (17.3 miles) ⓘTip Top Mine, Fourmile, Custer Mining District, Custer County, South Dakota, USA
28.2km (17.5 miles) ⓘTin Mountain Mine, Fourmile, Custer Mining District, Custer County, South Dakota, USA
References
Rocks & Min.:10:147 & 60:112,116.
 
and/or  
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