stripes
Occurrence number:
103-00-036
Country:
Malawi
Region:
Chilwa Province
Location:
Longitude: 35.65, Latitude: -15.72
Carbonatite:
No
Machemba Mountain is an oval area of Precambrian gneisses cut by an elongate plug of quartz syenite grading into granite. The rocks comprise perthite, quartz, a sodic amphibole which replaces aegirine-augite and is itself replaced by riebeckite, biotite and accessory magnetite, zircon and titanite.
References:
GARSON, M.S. and WALSHAW, R.D. 1969. The geology of the Mlanje area. Bulletin, Geological Survey of Malawi, 21: 1-157.
Location: