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Friisite from
Långban Mine, Långban Ore District, Filipstad, Värmland County, Sweden


Locality type:Mine
Classification
Species:Friisite
Formula:Pb8Al3Si8O27Cl3
Chemical Analyses:
Oxide wt%:
1
Na2O0.14 %
Al2O34.42 %
SiO219.80 %
Cl4.19 %
CaO0.19 %
MnO0.31 %
Fe2O30.63 %
ZnO0.42 %
PbO69.83 %
O=Cl-0.94 %
Total:98.99 %
Empirical formulas:
1(Pb7.89Na0.11CaO0.08)Σ8.8(Al2.19Si0.31Fe3+0.20Zn0.13Mn2+0.11)Σ2.94Si8O27.02Cl2.98
Sample references:
1 -
Holtstam, Dan; Cámara, Fernando; Karlsson, Andreas (2026) Friisite, Pb8Al3Si8O27Cl3, a new mineral with a polysomatic relation to jagoite, from Långban, Sweden. European Journal of Mineralogy, 38 (2). 169-177 doi:10.5194/ejm-38-169-2026
Confirmation
Validity:Valid - Type Locality
Data
Mineral Data:Click here to view Friisite data
Locality Data:Click here to view Långban Mine, Långban Ore District, Filipstad, Värmland County, Sweden
Data Identifiers
Mindat Occurrence Record ID:1664754
Long-form Identifier:1:3:1664754:7
GUID (UUID V4):0
References
Holtstam, D., Cámara, F., Karlsson, A (2024) Friisite, IMA 2024-047, in IMA Commission on New Minerals, Nomenclature and Classification (CNMNC) – Newsletter 82. European Journal of Mineralogy, 36 (6). 1005-1010 doi:10.5194/ejm-36-1005-2024
Holtstam, Dan; Cámara, Fernando; Karlsson, Andreas (2026) Friisite, Pb8Al3Si8O27Cl3, a new mineral with a polysomatic relation to jagoite, from Långban, Sweden. European Journal of Mineralogy, 38 (2). 169-177 doi:10.5194/ejm-38-169-2026
 
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