Formula :
(Ca,Na)2(Fe2+,Fe3+,Ti4+)6[O2/Be(Si,Al)5O18]
System: triclinic Hardness:5½ Rarity:very rare
Strunz id:VIII/F.14-35 -
SILICATES
Name origin: Named for the Høgtuva peak, the nearest significant reference point in the area of the type locality in Nordland, Norway. The peak is located about 7 km NW of the TL. It was first found in 1983 by Ingvar Lindahl (Norwegian Geological Survey) during uranium exploration in the area, and named by Grauch et al. (1994).
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