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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Halloysite from
Bunkerville Mining District, Virgin Mountains, Clark County, Nevada, USA


Locality type:Mining District
Classification
Species:Halloysite
Formula:Al2Si2O5(OH)4 · n(H2O)
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Halloysite data
Locality Data:Click here to view Bunkerville Mining District, Virgin Mountains, Clark County, Nevada, USA
Data Identifiers
Mindat Occurrence Record ID:285291
Long-form Identifier:1:3:285291:1
GUID (UUID V4):0
References
Castor, Stephen B.; Ferdock, Gregory C. (2004) Minerals of Nevada. Special Publication 31. Nevada Bureau of Mines and Geology 512pp.
 
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