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Grandidierite from
Paderu, Visakhapatnam District, Andhra Pradesh, India


Locality type:Village District
Classification
Species:Grandidierite
Formula:(Mg,Fe2+)(Al,Fe3+)3(SiO4)(BO3)O2
Comments:enclosed in sillimanite or between sillimanite and other minerals and rarely as inclusions in grains of opaque adjacent to sillimanite.
Habit:rare prisms or grains generally 0.1-0.15 mm across; a few are as much as 0.4 mm long.
Confirmation
Validity:Confirmed
Confirmation Methods:Ion Microprobe
Data
Mineral Data:Click here to view Grandidierite data
Locality Data:Click here to view Paderu, Visakhapatnam District, Andhra Pradesh, India
Data Identifiers
Mindat Occurrence Record ID:971967
Long-form Identifier:1:3:971967:5
GUID (UUID V4):0
References
Grew, Edward S. (1983) A grandidierite-sapphirine association from India. Mineralogical Magazine, 47 (344) 401-403 doi:10.1180/minmag.1983.047.344.20
 
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