 | | Journal (article/letter/editorial) | | Composition of priderite in phlogopitites from the Catal o I carbonatite complex, Brazil Jos~ C. GASPAR...Universidade de Brasilia, 70910-900 Brasilia D.F., Brazil Abstract Magnetite grains with exsolved ilmenite...Catal~o I carbonatite complex, Goi~is State, Brazil. The ilmenite is transformed in part to priderite and...and sometimes to rutile. Priderite occurs as small anhedral grains (< 0.2mm) or composite crystals associated...inside the area of original magnetite grains. The priderite belongs to the K2FeTiTOI6-BaFeTi7016 series with |  | Mitchell, R. H., Yakovenchuk, V. N., Chakhmouradian, A. R., Burns, P. C., Pakhomovsky, Y. A. (2000) Henrymeyerite, a new hollandite-type Ba-Fe titanate from the Kovdor Complex, Russia. The Canadian Mineralogist, 38 (3) 617-626 doi:10.2113/gscanmin.38.3.617 | Journal (article/letter/editorial) | | HOLLANDITE-TYPE Ba–Fe TITANATE FROM THE KOVDOR COMPLEX, RUSSIA ROGER H. MITCHELL§ Department of Geology...e – calcite – dolomite carbonatite of the Kovdor alkaline ultramafic complex, Kola Peninsula, in Russia...henrymeyerite, hollandite, cryptomelane group, carbonatite, Kovdor complex, Russia. SOMMAIRE Nous décrivons ici...à la hollandite, découvert dans un filon de carbonatite à tétraferriphlogopite – calcite – dolomite dans...henrymeyerite, hollandite, groupe de la cryptomelane, carbonatite, complexe de Kovdor, Russie. INTRODUCTION Members |  | | Journal (article/letter/editorial) | | THE ALTO PARANAÍBA IGNEOUS PROVINCE, SOUTHEASTERN BRAZIL MARIA FRANCA BRIGATTI§ Dipartimento di Scienze...19, I-41100 Modena, Italy LUCA MEDICI§ IRA – CNR, Area della Ricerca di Potenza, Via S. Loja, I-85050...dell’Università di Modena e Reggio Emilia, Via S. Eufemia, 19, I-41100 Modena, Italy CARMELA VACCARO§ Dipartimento...Terra dell’Università di Ferrara, C.so Ercole I d’Este, 32, I-44100 Ferrara, Italy ABSTRACT The crystal...lavas and alkaline-silicate, silicate-carbonatite and carbonatite plutonic rocks occurring in the Alto |
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