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Potassic-ferro-chloro-sadanagaite from
Mørkdalen, Nusfjord, Flakstadøya, Flakstad, Nordland, Norway


Locality type:Outcrop
Classification
Species:'Potassic-ferro-chloro-sadanagaite' (not an IMA approved species)
Formula:KCa2(Fe32+Al2)(Al3Si5O22)Cl2
Comments:Listed composition is the sample with highest content of Cl of about 100 microprobed samples. The amphibole composition range from edenite group to sadanagaite group.
SiO2 31.98
TiO2 0.45
Al2O3 18.43
FeO 24.19
MnO 0.05
MgO 2.22
CaO 11.08
Na2O 1.54
K2O 2.43
Cl 5.06
Total 97.43
Confirmation
Validity:Confirmed
Confirmation Methods:SEM-WDS
Data
Mineral Data:Click here to view Potassic-ferro-chloro-sadanagaite data
Locality Data:Click here to view Mørkdalen, Nusfjord, Flakstadøya, Flakstad, Nordland, Norway
Data Identifiers
Mindat Occurrence Record ID:825177
Long-form Identifier:1:3:825177:0
GUID (UUID V4):0
References
Kullerud, Kåre, Erambert, Muriel (1999) Cl-scapolite, Cl-amphibole, and plagioclase equilibria in ductile shear zones at Nusfjord, Lofoten, Norway: implications for fluid compositional evolution during fluid-mineral interaction in the deep crust. Geochimica et Cosmochimica Acta, 63 (22) 3829-3844 doi:10.1016/s0016-7037(99)00150-7
Locock, Andrew J. (2014) An Excel spreadsheet to classify chemical analyses of amphiboles following the IMA 2012 recommendations. Computers & Geosciences, 62. 1-11 doi:10.1016/j.cageo.2013.09.011
 
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