00485nas a2200073   4500008003900000245026000039210006900299856004300368       1986                          d00aMENGE, G.F.W. 1986. Sodalite carbonatite deposits of Swartbooisdrif, South West Africa/Namibia. In C.R. Anhaeusser and S. Maske (eds), Mineral deposits of southern Africa, 1: 2261-8. Geological Society of South Africa, Johannesburg.VERWOERD, W.J. 1967. Th0 aMENGE GFW 1986 Sodalite carbonatite deposits of Swartbooisdrif S  uhttps://alkcarb.myrocks.info/node/7273