 | | Report (issue) | | Gorceixite BaAl3(PO4)(PO3OH)(OH)6 Crystal Data: Monoclinic or hexagonal. Point Group: m or 3 m. Rare...Zimbabwe. From the Mrima Hill carbonatite, Kenya. At Issineru, Guiana. In the Bonsa River, near Dompim, Gold...Pseudo-trigonal symmetry and the structure of gorceixite. Neues Jahrb. Mineral., Monatsh., 157-170. (3)...(3) Radoslovich, E.W. (1982) Refinement of gorceixite structure in Cm. Neues Jahrb. Mineral., Monatsh...Blanchard, F.N. (1989) New X-ray powder data for gorceixite, BaAl3(PO4)2(OH)5∙H2O, an evaluation of d-spacings |  | | Report (issue) | | Kurt A. Fredriksson, and JorepH MINERALOGY Gorceixite in the Buffels River, Namaqualand, South Africa...blocks and_ igniting nuée down into the forested region. The dark ash cloud component, which had blanketed...eters wide, extending down through the forested region the lower northwestern flanks of the volcano. ...clay plot very nicely in the iron-rich saponite region of the FeO-Fe,03-MgO SiO. Al:Os FesOs FeO MgO...phenocrysts (Fog;) described from pillow lavas in this region (Melson et al. 1968, page 5929). Acknowledgments |  | | Journal (issue) | | headwaters of the Amazon tributaries, that is, the region east of the Andes in Colombia, Peru, Brazil and...between the Aremu and Aranka goldfields in the Cuyuni River district. Workable gold deposits were found...miles in the upper Mazaruni district. The area includes the important Tamakay and Issineru goldfields and...trough of low-lying country connecting the Mazaruni and Cuyuni Rivers west of the Werushima Hills. Further...transport service in the Mazaruni to be extended to develop the upper Cuyuni and Wenamu districts on the |  | | Journal (issue) | | Assistance to tl1e Empire Mining Industry . . . 282 Gorceixite in Southern Rhodesia. By A. M. Macgregor, M.A...THE IMPERIAL INSTITUTE Recent Discoveries of Gorceixite in the Empire • • • . 160 CONTENTS PROGRESS...gum-yielding species of Astragalus already growing in this region. It has recently been suggested that cultivation...headwaters of the Kutuau River, a tributary of the Cuyuni. The survey was undertaken in order to investigate...Akaiwong dyke in the Cuyuni River and the Tiboku dolerite range of the Mazaruni. White Sand Series The |  | Palache, Charles, Berman, Harry, Frondel, Clifford (1951) The System of Mineralogy (7th ed.) Vol. 2 - Halides, Nitrates, Borates, Carbonates, Sulfates, Phosphates, Arsenates, Tungstates, Molybdates, Ect. John Wiley and Sons, New York. | Book (volume) | | Antero region, Chaffee County; in drusy pegmatitic cavities in the granite of the Pikes Peak region; abundantly...(1791director of an exploratory expedition to the Laurium region who was in 1835. Ref. 1. Elements of Palache...strengite in pegmatite at the Kreuzberg, : same region in pegmatite Hagendorf and as an alteration of... Peru, and on the west coast of the Patagonia region, South America. A r t i f.^ Obtained in crystals...(analysis 5) but a gap appears to exist between this region and the calcian varieties of siderite. Color white |  | Gaines, Richard V., Skinner, H. Catherine W., Foord, Eugene E., Mason, Brian, Rosenzweig, Abraham, King, Vandall T. (1997) Dana's New Mineralogy (8th ed.) Wiley-Interscience. p.1872 | Book (edition) | | nm); weakly anisotropic. Bolshoi Anyui R.., Kolyma region, Russia, in gold-bearing alluvium. sm MZ 11(4):88(1989)...VHNjo9 = 260. R = 55.3 (540 nm). Magnetic. Kumak region, Southern Ural Mts., Russia, in quartz veins with...VHNjo9 = 900. R = 58.8 (540 nm). Magnetic. Kumak region, Southern Ural Mts., Russia, in quartz veins with...South Africa; Choco, Cauca, Colombia; Potaro R., Guyana; Bom Sucesso, near Serro, MG, Brazil. BM DI:109...Merensky Reef, Transvaal, South Africa; Potaro R., Guyana, in placers. BM DI:105, AM 45:1093(1960), R:362 |
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