Zobrazeno 1 - 10
of 28
pro vyhledávání: '"Georges Favreau"'
Publikováno v:
European Journal of Mineralogy. 34:365-374
The new mineral species graulichite-(La), ideally LaFe33+(AsO4)2(OH)6, has been discovered in the Patte d'Oie mine, Bou Skour mining district, Morocco. It occurs as yellow rhombohedral crystals, up to 0.1 mm in size, with a resinous luster, associate
Autor:
Catherine Bougerol, William G. Mumme, Ian E. Grey, Pierre Bordet, Emre Yoruk, Stéphanie Kodjikian, Georges Favreau, Helen E. A. Brand, Holger Klein, Stuart J. Mills
Publikováno v:
Mineralogical Magazine
Mineralogical Magazine, Mineralogical Society, 2020, 84 (4), pp.608-615. ⟨10.1180/mgm.2020.52⟩
Mineralogical Magazine, Mineralogical Society, 2020, 84 (4), pp.608-615. ⟨10.1180/mgm.2020.52⟩
Bulachite specimens from Cap Garonne, France, comprise two intimately mixed hydrated aluminium arsenate minerals with the same Al:As ratio of 2:1 and with different water contents. The crystal structures of both minerals have been solved using data f
Publikováno v:
Mineralogical Magazine. 83:459-463
The crystal structure of Ni-rich gordaite–thérèsemagnanite has been determined from a sample collected at pillar 80 in the North mine, Cap Garonne, Var, France. The structure was refined toR1= 0.0693 for 935 reflections withI> 2σ(I). The mineral
Publikováno v:
Zeitschrift für Kristallographie - Crystalline Materials. 233:861-865
We describe here the case of twinning by reticular (pseudo)merohedry in case of natural zippeite crystal from Cap Garonne, France. The twin is by two-fold rotation in [100] and it is a first document of this type of twinning in zippeite-related miner
Publikováno v:
Mineralogical Magazine. 82:181-187
The crystal structure of ceruleite, CuAl4[AsO4]2(OH)8(H2O)4, has been solved to anR1of 0.0307, using the world's largest crystals from the Cap Garonne mine, France. Ceruleite crystallizes in space groupP21/n, with the unit cella= 7.2000(14),b= 11.345
Publikováno v:
Acta Crystallographica Section B Structural Science, Crystal Engineering and Materials. 73:950-955
A new superstructure of the mineral camerolaite, Cu6Al3(OH)18(H2O)2[Sb(OH)6](SO4), has been refined in space group P\bar 1 with unit-cell parameters aP = 7.7660 (16), bP = 8.759 (4), cP = 11.306 (2) Å, α P = 108.67 (4), β P = 83.41 (3), γ P = 126
Autor:
Michael S. Rumsey, Christian Berbain, Erica Bittarello, Marco E. Ciriotti, John Spratt, Stuart J. Mills, Andrew G. Christy, Georges Favreau
Publikováno v:
European Journal of Mineralogy. 29:307-314
Hydroxyferroromeite, ideally (Fe □)Sb O(OH), is a new secondary mineral from the Correc d'en Llinassos, Oms, Pyrenees-Orientales Department, France. Hydroxyferroromeite occurs as yellow to yellow-brown powdery boxwork replacements up to about 50mma
Publikováno v:
European Journal of Mineralogy. 28:479-484
Alfredopetrovite, Al 2 (Se 4+ O 3 ) 3 · 6H 2 O, is a new secondary selenite mineral from the El Dragon mine, Antonio Quijarro Province, Potosi Department, Bolivia. The mineral occurs in vugs in a matrix of Co-rich krut’aite–penroseite, dolomite
Publikováno v:
Mineralogical Magazine. 78:1527-1552
We present Raman data for camerolaite, cyanotrichite and carbonatecyanotrichite, and using synchrotron single-crystal X-ray diffraction have solved the structure of camerolaite from the Tistoulet Mine, Padern, Aude Department, France. Camerolaite cry
Publikováno v:
Mineralogical Magazine. 78:851-860
Bariopharmacoalumite-Q2a2b2c, Ba0.5(Cu,ZnO)0.1H0.6[Al4(OH)4(As0.9Al0.1O4)3]·5.5H2O, from the south mine of the old copper mine at Cap Garonne, France, has a 2 × 2 × 2 I-centred tetragonal superstructure of the basic pharmacosiderite-type structure