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Cascandite from
Heftetjern pegmatite, Tørdal, Drangedal, Telemark, Norway


Locality type:Pegmatite
Classification
Species:Cascandite
Formula:CaScSi3O8(OH)
Chemical Analyses:
Oxide wt%:
1
CaO16.88 %
MgO0.07 %
MnO0.91 %
FeO3.90 %
Sc2O316.92 %
SiO254.94 %
H2O calc2.72 %
Total:96.34 %
Empirical formulas:
1Ca1.00(Sc0.81Fe2+0.18Mn0.04Mg0.01) Σ1.04Si3.03O8(OH)
Sample references:
1 -
Raade, Gunnar, Erambert, Muriel (1999) An intergrowth of scandiobabingtonite and cascandite from the Heftetjern granite pegmatite, Norway. Neues Jahrbuch für Mineralogie - Monatshefte, 1999 (12) 545-550
Comments:Cascandite occurs in light green, fibrous and porous masses 2–3 mm across consisting mostly of scandiobabingtonite, forming intimate fibrous intergrowths with scandiobabingtonite, with individual intergrowth zones exceeding 100 µm in length (Raade & Erambert 1999).


Confirmation
Validity:Believed Valid
Associated Minerals Based on Photo Data:
Scandiobabingtonite4
Kristiansenite2
Albite1
Data
Mineral Data:Click here to view Cascandite data
Locality Data:Click here to view Heftetjern pegmatite, Tørdal, Drangedal, Telemark, Norway
Data Identifiers
Mindat Occurrence Record ID:55079
Long-form Identifier:1:3:55079:0
GUID (UUID V4):0
References
Raade, Gunnar, Erambert, Muriel (1999) An intergrowth of scandiobabingtonite and cascandite from the Heftetjern granite pegmatite, Norway. Neues Jahrbuch für Mineralogie - Monatshefte, 1999 (12) 545-550
Eldjarn, Knut (2002) Seltene Scandium-mineralien von Tørdal, Telemark, Norwegen [Rare Scandium mineral from Tørdal, Telemark, Norway]. Mineralien Welt, 13 (2). 14-22
Nagashima, Mariko, Nishio-Hamane, Daisuke, Matsumoto, Takashi, Fukuda, Chihiro (2022) The Role of Scandium Substitution in Babingtonite Group Minerals. Minerals, 12 (3) 333 doi:10.3390/min12030333
NAGASHIMA, Mariko; NISHIO-HAMANE, Daisuke (2026) Crystal chemistry of uedaite-(Ce) from the Karasugawa mine, Fukushima, Japan, and the Heftetjern pegmatite, Norway. Journal of Mineralogical and Petrological Sciences, 121 (1). p.n/a. doi:10.2465/jmps.260125
 
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