 | Baldwin, J. R., Hill, P. G., von Knorring, O., Oliver, G. J. H. (2000) Exotic aluminium phosphates, natromontebrasite, brazilianite, goyazite, gorceixite and crandallite from rare-element pegmatites in Namibia. Mineralogical Magazine, 64 (6) 1147-1164 doi:10.1180/002646100549940 | Journal (article/letter/editorial) | | and crandallite from rare-element pegmatites in Namibia J. R. BALDWIN1,*, P. G. HILL2, O. VON KNORRING3...rare-element pegmatites from the KaribibUsakos area, Namibia, have been investigated using the electron microprobe...F) is reported from the Daheim pegmatite. In the Okatjimukuju pegmatite, montebrasite has been replaced...the contacts with montebrasite and associated minerals and texturally is intimately intergrown with crandallite...gorceixite at Okatjimukuju. The occurrence of these minerals offers insight into the chemistry of post-magmatic |  | | Book | | REPUBLIC OF NAMIBIA - MINISTRY OF MINES AND ENERGY GEOLOGICAL SURVEY THE MINERAL RESOURCES OF NAMIBIA FIRST...MINES AND ENERGY Of the several hundred minerals present in Namibia, around sixty have been exploited. some...deposits of base metals and industrial minerals have helped Namibia rank amongst the top five mining countries...terms of production and reserves. In this context, Namibia is a major producer of copper, lead, zinc, cadmium...unpublished. It is evident that mineral exploration in Namibia, as elsewhere. has changed from serendipitous discoveries |  | | Report (issue) | | of corrensite and associated magnesium-bearing minerals through geologic time...........................fields for authigenic corrensites and associated minerals........................................ Page...reactions of various corrensite species to standard clay analyses tests as shown by the superorder angstrom...of the information available on the mixed-layer clay mineral corrensite. For 30 years corrensite and...probably trioctahedral clay mineral species composed of a 14A chlorite and a swelling-clay layer. The latter |  | | Book | | designed both for the beginner and the lover of minerals” (Schuh, 2000). This great, three-volume rarity...Krystalle zu sein, die Krystallform eines anderen Minerals zeigen]. That Naumann favored a more restrictive...perimorph. L.P. Gratacap in his Popular Guide to Minerals (Gratacap, 1912) defines an epimorph as “a pseudomorph...properties of the host crystal. There are at least 50 minerals known to occur in a metamict state. 3. Exsolution...complex mixture of mostly rare secondary copper minerals (Nassau et al., 1987). 5. Replacement pseudomorphs |  | | Book (chapter) | | designed both for the beginner and the lover of minerals” (Schuh, 2000). This great, three-volume rarity...Krystalle zu sein, die Krystallform eines anderen Minerals zeigen]. That Naumann favored a more restrictive...perimorph. L.P. Gratacap in his Popular Guide to Minerals (Gratacap, 1912) defines an epimorph as “a pseudomorph...properties of the host crystal. There are at least 50 minerals known to occur in a metamict state. 3. Exsolution...complex mixture of mostly rare secondary copper minerals (Nassau et al., 1987). 5. Replacement pseudomorphs |
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