@booklet {7421,
	title = {STRAUSS, C.A. and TRUTER, F.C. 1950b. Post-Bushveld ultrabasic, alkali and carbonatitic eruptives at Magnet Heights, Sekukuniland, eastern Transvaal. Transactions of the Geological Society of South Africa, 53: 169-90VERWOERD, W.J. 1967. The carbonatites o},
	year = {1950},
	note = {STRAUSS, C.A. and TRUTER, F.C. 1950b. Post-Bushveld ultrabasic, alkali and carbonatitic eruptives at Magnet Heights, Sekukuniland, eastern Transvaal. Transactions of the Geological Society of South Africa, 53: 169-90VERWOERD, W.J. 1967. The carbonatites of South Africa and South West Africa. Geological Survey of South Africa, Handbook, 6: 1-452}
}
