stripes
Occurrence number:
005-00-001
Country:
Angola
Location:
Longitude: 13.57, Latitude: -6.07
Carbonatite:
No
From 16 km along the road from Noqui to Sao Salvador, Holmes (1915) described a riebeckite-aegirine granite marginal to albite granites. A mode, by weight, gave 32% quartz, 48% albite, microcline and perthite, 16% riebeckite, 4% aegirine and accessories including zircon. A rock analysis is given. This locality extends northwards into Congo (See Congo No. 20).
References:
HOLMES, A. 1915. A contribution to the petrology of north-western Angola. Geological Magazine, 6: 228-32, 267-72.
Location: