association with U-rich microlite, columbite(Fe), andesine, calcite, dravite, magnesio-hornblende, and chrysoberyl...Håkestad quarry, Håkestad, Tjølling, Larvik, Vestfold, Norway. Description: Dark brown long-prismatic crystal...quarry, Mørje, Porsgrunn, southern Oslo region, Norway. Description: White platy crystals from the association...Locality: Høgtveit, Evje, Setesdal, Aust-Agder, Norway (type locality). Description: Brown grains from...CaY6Al2Si4O18F6 (Fig. 2.515) Locality: Tysfjord, Nordland, Norway (type locality). Description: Colourless prismatic |