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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Grandidierite from
Qeqertarsuatsiaat area, Nuuk, Sermersooq, Greenland


Locality type:Mineral Occurrence Area
Classification
Species:Grandidierite
Formula:(Mg,Fe2+)(Al,Fe3+)3(SiO4)(BO3)O2
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Grandidierite data
Locality Data:Click here to view Qeqertarsuatsiaat area, Nuuk, Sermersooq, Greenland
Data Identifiers
Mindat Occurrence Record ID:5779
Long-form Identifier:1:3:5779:0
GUID (UUID V4):0
References
Petersen, Ole V., Secher, Karsten (1993) The Minerals of Greenland. The Mineralogical Record, 24 (2) 1-67
 
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