stripes
Occurrence number:
031-00-149
Country:
Canada
Region:
Labrador
Location:
Longitude: -68.25, Latitude: 56.8
Carbonatite:
No
A cancrinite-arfvedsonite pegmatite occurs on two small islands in a narrow arm along the north side of Nachicapau Lake. Arfvedsonite crystals up to 2x0.2 cm lie in a groundmass of cancrinite and very fine grained magnetite. Analyses of the rock, cancrinite and arfvedsonite are available (Dressler, 1981, p. 1761). Possibly related to the Castignon Lake occurrence (031-00-150) which is some 40 km further west.
References:
DRESSLER, B. 1981. Post-tectonic igneous rocks: north-central Labrador geosyncline. Canadian Journal of Earth Sciences, 18: 1758-62.
Location: