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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Robertsite from
Iron Monarch Main Pit, Iron Knob, Pastoral Unincorporated Area, South Australia, Australia


Locality type:Open-Cast Mine
Classification
Species:Robertsite
Formula:Ca2Mn33+(PO4)3O2 · 3H2O
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Robertsite data
Locality Data:Click here to view Iron Monarch Main Pit, Iron Knob, Pastoral Unincorporated Area, South Australia, Australia
Data Identifiers
Mindat Occurrence Record ID:758484
Long-form Identifier:1:3:758484:8
GUID (UUID V4):0
References
Francis, Glyn L. (2010) Minerals of Iron Monarch. OneSteel, Whyalla, Australia, 164 pgs.
 
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