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Astrophyllite from
Hoftøya, Færder Islands, Færder, Vestfold, Norway


Locality type:Island
Classification
Species:Astrophyllite
Formula:K2NaFe72+Ti2[Si4O12]2O2(OH)4F
Comments:Visually identified
Confirmation
Validity:Unconfirmed/Questioned
Data
Mineral Data:Click here to view Astrophyllite data
Locality Data:Click here to view Hoftøya, Færder Islands, Færder, Vestfold, Norway
Data Identifiers
Mindat Occurrence Record ID:675386
Long-form Identifier:1:3:675386:3
GUID (UUID V4):0
References
Larsen, Alf Olav; Andersen, Frode; Dahlgren, Sven; Larsen, Knut Edvard; Burvald, Ingulv - Ed. (2010) The Langesundsfjord - History, geology, pegmatites, minerals. Bode Verlag Gmbh. 240 pp.
Andersen, Frode (2017) Pegmatittganger og mineraler på Hoftøya og Langøya ved Færder i Ytre Oslofjord [Pegmatite dikes and minerals on Hoftøya and Langøya at Færder in the Outer Oslofjord]. Norsk Mineralsymposium 2017, 69-75
 
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To cite: Ralph, J., Von Bargen, D., Martynov, P., Zhang, J., Que, X., Prabhu, A., Morrison, S. M., Li, W., Chen, W., & Ma, X. (2025). Mindat.org: The open access mineralogy database to accelerate data-intensive geoscience research. American Mineralogist, 110(6), 833–844. doi:10.2138/am-2024-9486.
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