 | | Journal (article/letter/editorial) | | chemistry: the Cenozoic lacustrine Anloua basin (Adamaoua, Cameroon ) Christine Mosser~, Abel Brillanceaub*...chemistry: the Cenozoic lacustrine Anloua basin (Adamaoua, Cameroon ). Chem. Geol., 90: 319-342. The Cenozoic...Cenozoic lacustrine basin of Anloua (Adamaoua, Cameroon), is filled with the weathering products of the...gives an indication of the paleogeography of the Anloua basin. There was deltaic input towards the north...wesl. I. Introduction The Anloua lacustrine basin is located in Cameroon (Fig. 1 ), in the centre of |  | | Report (issue) | | c = 12.312(2) Z=4 X-ray Powder Pattern: Anloua, Cameroon. 6.158 (100), 3.076 (60), 10.18 (40), 7.41...05 5.29 33.37 Total [100.00] 100.00 (1) Anloua, Cameroon; average of two analyses, H2 O by the Penfield...recalculated after removal of quartz 5.42% and siderite 6.42% impurities; then corresponding to (K0.53...Association: Kaolinite, siderite, quartz, vivianite, organic matter. Distribution: From Anloua, near Ngaoundéré...Ngaoundéré, Cameroon. Name: Honors Dr. Joseph Mantienne (1929– ), Bureau de Recherches Géologiques et Minières |  | | Journal (article/letter/editorial) | | bismuthinite, stannite, sphalerite, tourmaline, siderite, kaolin, franckeite, apatite, vivianite, paravauxite...spectra of Catavi vivianite. (a) Cambridge Blue region of crystal cleavage; (b) Saxe Blue margin oxidation...reflectivity study of a vivianite single crystal from Anloua: v3(Wi)= 3125 cm -1, v'l(Wn)= 3260 cm -1, v'3(Wn)=...The spectra closely resemble a powder spectrum of Anloua vivianite given by Piriou and Poullen (1987, Fig...tentatively assigned similar bands in the 800-840 cm -a region of hydrated zinc phosphates to Z n O - H out-of-plane |  | | Book | | savants se sont interesses a la geologie de cette region. Le fait que politiquement le Mont Blanc soit rattache...la "Montagne de Chalanche" dans l'Oisans . Cette region, connue des anciens mineralogistes pour sa mine...- en 1906, une serie de roches eruptives de la region de Christiania, classees d'apres le professeur...long. aux faces brillantes, clans une geode de siderite. provenant de Saint-Pons, pres de Barcelonnette...spheriques et atteindre un diametre de 50 mm. SIDERITE FeC03 La mine de charbon de la Mure (!sere) va |  | Dunn, Pete J., Ferraiolo, James A., Fleischer, Michael, Gobel, Volker, Grice, Joel D., Langley, Richard H., Shigley, James E., Vanko, David A., Zilczer, Janet A. (1985) New mineral names. American Mineralogist, 70 (11-12) 1329-1335 | Journal (article/letter/editorial) | | u. The new mineral is associated with quartz, siderite and kaolinite as the matrix of sandy layers intetcalated...new mineral species from the vivianite deposit of Anloua, Cameroun. Bull. Min6ral., 107,737-744 (in French)...corrected for admixed impurities of quartz and siderite gave P2O5 31.96, TiO2 9.00, Al2O3 10.51, S. A |  | | Journal (article/letter/editorial) | | 1977. Fig.1. Straalvormig kristalaggregaat van Anloua (Kameroen). De splijting volgens 010, is goed waarneembaar...1 - 7 4 . B o n g a e r t s , J . L . 1989: A siderite-vivianite o c c u r e n c e from Late Pleistocene |  | | Book | | including: corundum, brucite, hematite, calcite, siderite, smithsonite, rhodochrosite, chabazite, tourmaline...system. A very large crystal (320 mm) of from Anloua. Cameroon; the edges are partly rounded. vivianite |  | | Report (issue) | | north or thorn forests in the south. Much of this region awaits exploration. South of the elbow, there are...associated with siderite and barite gangue. The mineralogy in these mesothermal siderite-barite veins tends...the road from La Paz to Coroico, in the Yungas region, offers glorious vistas but sees horrific accidents...area, 19 Minerals Lower left: Pyrrhotite on siderite; 6.5 cm wide; Jaros/av Hyrsl collection and photo...as were lens-shaped pyrite pseudomorphs after siderite. Pyrrhotite must have been common at one time | | | Book | | including: corundum, brucite, hematite, calcite, siderite, smithsonite, rhodochrosite, chabazite, tourmaline...very large crystal (320 mm) of vivianite from Anloua, Cameroon; the edges are partly rounded. 88 Monoclinic |  | Dyar, M. D., Jawin, E. R., Breves, E., Marchand, G., Nelms, M., Lane, M. D., Mertzman, S. A., Bish, D. L., Bishop, J. L. (2014) Mössbauer parameters of iron in phosphate minerals: Implications for interpretation of martian data. American Mineralogist, 99 (5) 914-942 doi:10.2138/am.2014.4701 | Journal (article/letter/editorial) | | 1 ludlamite DD219 60–70% ludlamite, and 30–40% siderite 40.3.6.1 vivianite DD171 85–90% vivianite, and...DD315A Vivianite 40.3.6.1 vivianite DD323 50% siderite, 20% goethite, 20% vivianite, 10% dilithium silicate...and ~35% natrite 41.7.4.1 lulzacite DD197 55% siderite, 35% lulzacite, and 10% bonshtedtite 41.9.1.1...Custer, Custer Co., South Dakota Anloua, Adamaoua Plateau, Cameroon Sandamab pegmatite, Namibia Linopolis...(Abrahams and Bernstein 1966) DD219 has a small siderite impurity as well as doublets from Fe2+ and Fe3+ |  | | Book | | crystallize in this system, e.g. calcite, dolomite, siderite, ‘low’ quartz (alpha quartz), corundum, tourmaline...include the pseudomorphs of limonite after pyrite or siderite, of malachite after native copper, of cuprite...nickelcobalt-bismuth-silver-uranium in carbonate veins; the siderite forma- tion with copper and mercury ores, and...nickel, and cobalt ores, as well as in deposits of siderite and chalcopyrite. It was also separated out in...gangue is predominantly composed of quartz and siderite. Boulangerite is of no commercial importance since |  | | Book | | crystallize in this system, e.g. calcite, dolomite, siderite, 'low' quartz (alpha quartz), corundum, tourmaline...include the pseudomorphs of limonite after pyrite or siderite, of malachite after native copper, of cuprite...nickelcobalt-bismuth-silver-uranium in carbonate veins; the siderite formation with copper and mercury ores, and some...nickel, and cobalt ores, as well as in deposits of siderite and chalcopyrite. It was also separated out in...gangue is predominantly composed of quartz and siderite. Boulangerite is of no commercial importance since |  | | Book | | to 15 mm ("/» in) come from Konder in Khabarovsk Region, small crystals, but mainly nuggets, weighing up...aggregates are found in Sri Lanka (Radegara, Galle region). Accumulations in Buckingham and Grenvillc, Quebec...Austria and from the deposits in the Tri State region, Missouri, USA. Crystals up to 10 mm ('/» in) occurred...known from Musonoi, Shaba. Zaire; Mhsen, Germany; siderite concretions in Kladno, Czech Republic and from...with nickeline, nickel-skutterudite, ullmanite, siderite and other minerals. Crystals up to 100 mm (4 in) | | | Book | | crystallize in this system, e.g. calcite, dolomite, siderite, 'low' quartz (alpha quartz), corundum, tourmaline...include the pseudomorphs of limonite after pyrite or siderite, of malachite after native copper, of cuprite...nickelcobalt-bismuth-silver-uranium in carbonate veins; the siderite f ormation with copper and mercury ores, and some...nickel, and cobalt ores, as well as in deposits of siderite and chalcopyrite. It was also separated out in...gangue is predominantly composed of quartz and siderite. Boulangerite is of no commercial importance since |  | | Journal (issue) | | 208-240 Montana mineral locality index 246-255 Siderite, Siete Suyos mine, Atocha-Quechisla District,...Zwitserland), 15 cm grote vivianietkristallen van Anloua (Kameroen), een mooie rookkwartsgwindel uit St |  | | Book | | see for themselves. Cover photograph: Hexagonal siderite from Cornwall, England. (Museo Civico di Storia...36 serpentine 108 serpentine, precious 108 siderite 42 silica group 31 silicates 75 sillimanite...use as chief deposits are in the Adirondack region Its high melting point makes it suitable a refractory...Right: Bacciliform bismuthinite with lamellar siderite. Brosso, Piedmont (Italy) Left: Nagyagite,...Brosso near Ivrea (Piedmont) in association with siderite and scaly hematite, and at Alfenza, near Crodo |  | | Journal (article/letter/editorial) | | Hero Town (420 m, 44 ~ west of south), QalaDizeh region, NE Iraq, in melilite skarn in contact with banded...1986. Zap. 115, 355. [XpoM~epna.] In the Kumak region, southern Urals, USSR, in goldquartz veins cutting...cleavage, H 3.7. Associated with quartz, magnetite, siderite, albite, stilpnomelane, minnesotaite, deerite...1986. Zap. 115, 355. [tBepxpor~m~.J In the Kumak region, southern Urals, USSR, in gold-quartz veins cutting...1984. Bull. 107, 737. In the vivianite deposit at Anloua, Cameroun, W. Africa, intercalated with black shales |  | | Book | | should be of specimens from localities within the region of that museum, or at least from the country concerned...and well-formed crystal of linnaeite, perched on siderite, from the Grube Georg, near Horhausen, Westerwald...thin coating of chalcopyrite, and is sitting on siderite. Collection of the Technical University, Clausthal...Table-c.2 tarnowitzite) Tsumeb, Namibia Table-c.3 Siderite, Quartz Nova Lima, Brazil 10 Crocoite Dundas,...Rottleberode, Harz, GDR Manganite llfeld, Harz, GDR Siderite, Quartz Allevard, lsere, France Ericaite Kaliwerk |  | | Journal (issue) | | (samples of these crystals from kimberlites of this region were kindly submitted to the author by Yana Bao...reveal the rubies. Our field crew worked in this region in 1986 and suggested that the geologists use an...as visible aggregates which are of interest fora region-mineralogical collection (crystals, dtuses of crystals... natron, northupite (?), rhodochrosite (!х1), siderite (!х1), strontianite (!х1), thermonatrite, trona...o r l d of Stones, № 9/96 8. Psrudomorph o f siderite gjlerfossil crayfish. Kerrh deposit. 14х 8ст. |  | | | | pyroxene group 96 pyrrhotite 12, /2 siberite 96 siderite 42 silica group 31 silicates 75 sillimanite 79...deposits in the United States are in the Adirondack region of New York. Its high melting point makes it suitable...Right: Bacciliform bismuthinite with lamellar siderite. Brosso, Piedmont (Italy) Left: Nagyagite, a...(USSR), Turkey, and Persia. Above: Bournonite on siderite. Huttenberg (Austria). Below: Jordanite in dolomite...pink octahedra in the dolomite of the St Gotthard region. Some United States localities are Westmoreland |  | | Catalog/List | | Greenish cleavages, an alteration of Enstatil Anloua,Cameroun, l x l £4 l x2 £8 Lecht Minc,Tomintoul...S1-ll JISKITE Pumpel ly ite group SIDERITE Fe CO/J SIDERITE Fe CO/3 SIDERITE Fe CO/J SIDERONATRITE Na Fe SO/4...percentage of Silver. Good grey masses 111 bro"n Siderite 405 TETRA HEDERITE 404 Mg BO, OH Cu OH MoO | | | Book | | deposits in the lJnited States are in the Adirondack region of New York. Its high melting point makes it suitable...Right: Bacciliform bis,nuthinite with la,nel/ar siderite. Brosso, Piedn1ont (Italy) Left: Nagyagite, a...(USSR), Turkey, and Persia. Above: Bournonite on siderite. Huttenberg (Austria). Below: Jordanite in do/01nite...pink octahedra in the dolomite of the St Gotthard region. Some United States localities are Westmoreland...quantities in several localities in the Adirondack region in New York, and in Utah, California, New Jersey |  | | Book | | becomes FeCOy This now becomes a new mineral, siderite (p.155). Silicate minerals form a large part of...unlimited as in the plagioclases or in magnesi te-siderite. Even the law of balancing charges is sometimes...tetrahedrite coated with chalcopyrite, with foliated siderite and calcite crystals. Clausthal, Harz Mts., Germany...crystals of galena with brown rhombohedrons of siderite and rock crystals. Typical association from Neudorf...changes within the crust, covers a wide area, or region. The slaty texture is very marked in the epi- and |  | | Book | | gazeux (sublimation). La courbe de fusion separe la region correspondant a l'etat solide de celle correspondant...ne sont plus nettement differencies ; c'est la region de l'etat fluide. L'etat liquide presente des caracteres...carbonates rhomboedriques : calcite, magnesite, siderite, smithsonite, ainsi que le corindon, l'hematie...Calcite . . . . . . . . . . Rhodocrosite . . .... Siderite . . . . . . . . . . Smithsonite . . . . . . ....A LOGIE • le groupe de la dolomite, chez la siderite, la heulandite, l'arsenopyrite. Un autre type |  | | Journal (issue) | | the Valley of the Fiescher Glacier, Oberwallis Region, Switzerland ....................................stratigraphically above the Silurian formations in this region of Ohio and left a layer of gravel and sand (up...white pocket-filling calcite. Although the eastern region of the Findlay Arch mineral district is renowned...on the rims of sedimentary basins throughout the region. Marcasite FeS2 and Pyrite FeS2 Although present...the Valley of the Fiescher Glacier Oberwallis Region, Switzerland Jacques Grandjean Route du Vallon |
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