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Grandidierite from
Grandidierite occurrence, Vestpolltind, Lødingen, Nordland, Norway


Classification
Species:Grandidierite
Formula:(Mg,Fe2+)(Al,Fe3+)3(SiO4)(BO3)O2
Chemical Analyses:
Oxide wt%:
1
SiO220.05 %
Al2O353.68 %
FeO6.81 %
MnO0.18 %
MgO9.44 %
B2O3 (assumed)10.00 %
Total:100.16 %
Sample references:
1 -
Krogh, Erling J. (1975) The first occurrence of grandidierite in Norway. Contribution to the mineralogy of Norway, no. 59. Norsk Geologisk Tidsskrift [Norwegian Journal of Geology], 55 (1) 77-80
Habit:Euhedral prismatic crystals less than O.l mm to 1.5 mm long and up to O.l mm across.
Confirmation
Validity:Believed Valid
Associated Minerals:
Associates:Biotite
Garnet Group
Ilmenite
Quartz
Rutile
Data
Mineral Data:Click here to view Grandidierite data
Locality Data:Click here to view Grandidierite occurrence, Vestpolltind, Lødingen, Nordland, Norway
Data Identifiers
Mindat Occurrence Record ID:702640
Long-form Identifier:1:3:702640:9
GUID (UUID V4):0
References
Krogh, Erling J. (1975) The first occurrence of grandidierite in Norway. Contribution to the mineralogy of Norway, no. 59. Norsk Geologisk Tidsskrift [Norwegian Journal of Geology], 55 (1) 77-80
 
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