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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Smectite Group from
Nanliu river delta, Hepu Co., Beihai, Guangxi, China


Classification
Species:'Smectite Group' (not an IMA approved species)
Formula:A0.3D2-3[T4O10]Z2 · nH2O
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Smectite Group data
Locality Data:Click here to view Nanliu river delta, Hepu Co., Beihai, Guangxi, China
Data Identifiers
Mindat Occurrence Record ID:706172
Long-form Identifier:1:3:706172:1
GUID (UUID V4):0
References
Heping Sun and Curtis, C.D. (1988): Acta Mineralogica Sinica 8(2), 97-103
 
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