stripes
Occurrence number:
030-00-012
Country:
Cameroon
Location:
Longitude: 12.92, Latitude: 8.27
Carbonatite:
No
Mount Bollo is built of biotite-amphibole gneisses within which are masses, up to 200 m long, of equigranular gneiss containing quartz, microcline, albite, riebeckite and a little aegirine; there is also a brown amphibole referred to by Koch (1955b and 1959b) as barkevikite.
References:
KOCH, P. 1955b. Sur un gneiss à riebeckite du Nord-Cameroun. Compte Rendu Sommaire des Séances de la Société Géologique de France, 274-5.KOCH, P. 1959b. Le Précambrien de la frontière occidentale du Cameroun central. Bulletin de la Direction des Mines et de la Geologie, Territoire du Cameroun. Paris, 3: 1-301.
Location: