Citation: Kolitsch, U.; Kristiansen, R.; Raade, G.; Tillmanns, E. (2010). Heftetjernite, a new scandium mineral from the Heftetjern pegmatite, Tordal, Norway. European Journal of Mineralogy, 22, pp. 309-316.
Formula: Fe0.07 Mn0.18 Nb0.42 O4 Sc0.5 Sn0.2 Ta0.58 Ti0.05
List type: noninterleaving
List: 3D
Basis: (1;0;0 0;1;0 0;0;1)
Dimensionality: 3
Formula: Fe2 Mn2 Nb2 O8 Sc2 Sn2 Ta2 Ti2 (Fe Mn Nb O4 Sc Sn Ta Ti)
Multiplicity: 1