 | | Journal (article/letter/editorial) | | peralkaline [(Na+K)/AI=I.4-2.3] wollastonite- and combeite- (Na2 Ca2Si309) bearing nephelinites. The presence...to produce combeite, indicated by corroded wollastonite phenocrysts armoured by combeite in some nephelinites...L'engai, is confirmed by melting experiments. Combeite nephelinites from Oldoinyo L'engai were erupted...extrusive centres (combeite has been recorded at only three localities), and combeite nephelinites are...and natrocarbonatite from strongly peralkaline combeite nephelinites. Introduction Silica-undersaturated |  | | Journal (article/letter/editorial) | | Abstract. Shombole, a nephelinite-carbonatite volcano in south Kenya, erupted silicate lavas, carbonatite...phenocrysts; three with [Na+K]/AI~2.0 contain combeite (Na2Ca2Si3Og) phenocrysts and pseudomorphs after...other centres. Combeite has been described from only two other locations (Mt. Shaheru, Zaire; Mayener...(Kenya) Rift. Prominent centres in this series are Mount Elgon, eastern Uganda (King 1965; King and Sutherland...Oldoinyo L'engai being still active. The extinct volcano Shombole on the Kenya-Tanzania border (Fig. 2) |  | | Journal (article/letter/editorial) | | Of the 322 entries*, the Democratic Republic of Congo (formerly Zaire) comes out on top with 88; Namibia...indebted to Dr.Joseph Mandarino of Toronto, Canada, and Dr. Werner Krause of Hiirth, Germany, who supplied dates...briartite shares with the Democratic Republic of Congo and Namibia, and both djerfisherite and niningerite...Localities (1) Kanemite: Kanem region, Lake Chad. CONGO(3) People (2) Fornacite: Lucien Louis Fourneau (18671930)...(18671930), colonial governor, French Congo. Plunchkite: Mr. PlanchC, French explorer. Localities (1) |  | | Book | | Buttgenbach H. (1 947) Les Mineraux de Belgique et du Congo Beige. 573 p. Paris: Ed. Dunod. Cesbron, F. (1985)...the government of the Democratic Republic of the Congo introduced a new admin istrative subdivision for...Haut-Loma mi Province. What formerly was called the Bas-Congo Province is known today by the name of Central Kongo...abbreviated (B = Belgium; D.R. Congo = Democratic Republic of the Congo; F = France). 4. The biographical...zinc ore was quarried should become a neutral territory, called Neutral Moresnet. The village of Moresnet |  | | Book | | County, Utah, U.S.A., who found the first braunite. Mount Ochi, Karystos, Greece. Reinecke, T. et al. (1991):...discovery locality, at Bald Knob, Alleghany County, North Carolina, U.S.A. Trimorphic relationship with barytocalcite...aluminum, thorium, uranium and phosphorus. Kobokobo, Kivu, Alluaudite Zaire. NaCaFe?*(Mn?*,Fe?*,Fe**,Mg)2(POx)3...mon., C2i\c (1916-1942?). Wilagedera prospect, North Western Province, Sri Lanka. The name is derived...engineer who collected the original specimens at Mount Nyiragongo, Zaire. Sahama, T.G. et al. (1973): Bull. |  | | Journal (issue) | | and new mineral descriptions has been produced by Dr. George Chao of Carleton Uni versity in Ottawa over...than 25 years. Considerable data was produced by Dr. Guy Perrault, especially in the period of 1965-75...1965-75, at Ecole Polytechnique in Montreal, by Dr. Joseph Mandarino of the Royal Ontario Museum in Toronto...Sciences in Ottawa, especially from 1981 to the present. Dr. Chao and the National Museum staff continue to produce...in 1980 at the Bay an Obo iron ore deposit, near Mount Daqingshan in China, where it occurs as platy aggregates |  | | Book | | unassuming hill with a dusty stone quarry on its north flank, which some enthusiastic collectors refer...team. First and foremost, our special thanks go to Dr. Robert F. Martin, editor of the Special Publication... especially the president, Dr. Paula Piilonen, and the Past-President, Dr. Andrew McDonald, for their...have been supportive and helpful on many fronts. Dr. Joel Grice has been generous with his advice and...and engaged in helpful discussions over many years. Dr. Paula Piilonen provided insight on MSH petrology |
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