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Astrophyllite from
Strange Lake Alkalic Complex (Strange Lake Complex; Lac Brisson Complex), Canada


02635490017873812952142.jpg
Astrophyllite, etc.

Strange Lake Alkalic Complex, Canada
08978270017880027208449.jpg
Astrophyllite, etc.

Strange Lake Alkalic Complex, Canada
Astrophyllite, etc.

Strange Lake Alkalic Complex, Canada
05919340017872475899054.jpg
Astrophyllite, etc.

Strange Lake Alkalic Complex, Canada
08978270017880027208449.jpg
Astrophyllite, etc.

Strange Lake Alkalic Complex, Canada
Astrophyllite, etc.

Strange Lake Alkalic Complex, Canada
03547130017880027219103.jpg
Astrophyllite, etc.

Strange Lake Alkalic Complex, Canada
08978270017880027208449.jpg
Astrophyllite, etc.

Strange Lake Alkalic Complex, Canada
Astrophyllite, etc.

Strange Lake Alkalic Complex, Canada
Locality type:Complex
Classification
Species:Astrophyllite
Formula:K2NaFe72+Ti2[Si4O12]2O2(OH)4F
Comments:An average of seven analyses in Birkett et al. (1996) indicates this mineral is in the Astrophyllite composition field with solid solution toward Kupletskite (Mn), Zircophyllite (Zr) and a phase similar to, but distinct from, Niobophyllite.
Confirmation
Validity:Believed Valid
Associated Minerals Based on Photo Data:
Vlasovite3
Dalyite3
Alkali Feldspar3
Data
Mineral Data:Click here to view Astrophyllite data
Locality Data:Click here to view Strange Lake Alkalic Complex (Strange Lake Complex; Lac Brisson Complex), Canada
Data Identifiers
Mindat Occurrence Record ID:68595
Long-form Identifier:1:3:68595:3
GUID (UUID V4):0
References
CURRIE, K.L. (1985): An unusual peralkaline granite near Lac Brisson, Quebec-Labrador. Geological Survey of Canada Paper 85-1A, 73-90.
Birkett, T. C., Miller, R. R., Roberts, A. C., Mariano, A. N. (1992) Zirconium bearing minerals from the Strange Lake intrusive complex, Quebec Labrador. The Canadian Mineralogist, 30 (1) 191-205
A. Kerr and H. Rafuse (2012) Rare-earth element (REE) geochemistry of the Strange Lake deposits: Implications for resource estimation and metallogenic models. Newfoundland and Labrador Department of Natural Resources Current Research 2012 pp39-60
Miller, M. (2021). Hunting for Rare-Earth-Element (REE)-bearing minerals in Northern Labrador: MLA-SEM analysis of surficial sediments within the glacial dispersion zone from the Strange Lake main zone deposit. Masters thesis, Memorial University of Newfoundland, xx pp.
 
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