 | | Journal (article/letter/editorial) | | anorthoclase (Al, Si), albite (Na), rutile (Ti), almandine (Fe), Cr2O3 (Cr), rhodonite (Mn), orthoclase (K)...(Cameroon), Sabatini and Alban Hills (Italy) and Ponte Nova (Brazil) alkaline rocks, but no coexisting melilite...minerals from the Ponte Nova alkaline mafic-ultramafic massif, southeastern Brazil: indication of an |  | | Report (issue) | | Mineral Resources of the Congonhas District Minas Gerais, Brazil GEOLOGICAL SURVEY PROFESSIONAL PAPER 290...the Departamento N acional da Produfao Mineral of Brazil under the auspices of the International Cooperation...Mineral Resources of the Congonhas District Minas Gerais, Brazil By PHILIP W. GUILD GEOLOGICAL SURVEY ...Departamento N acional da Produ~ao M,ineral of Brazil under the auspices of the International Cooperation...__________________ _ Iron region of central Minas Gerais _______________ _ Congonhas district_ ________________________ |  | Feneyrol, J., Ohnenstetter, D., Giuliani, G., Fallick, A. E., Rollion-Bard, C., Robert, J.-L., Malisa, E. P. (2012) EVIDENCE OF EVAPORITES IN THE GENESIS OF THE VANADIAN GROSSULAR 'TSAVORITE' DEPOSIT IN NAMALULU, TANZANIA. The Canadian Mineralogist, 50 (3) 745-769 doi:10.3749/canmin.50.3.745 | Journal (article/letter/editorial) | | 1972, Shackleton 1996). In the Merelani area, almandine-kyanite or sillimanite-biotite gneiss, kyanite...pegmatite concordant to the foliation, biotite-almandine gneiss, fine-grained graphitic gneiss associated... Total Si [4]Al ∑T apfu End members pyrope almandine spessartite andradite uvarovite goldmanite grossular...minerals from the Ponte Nova alkaline mafic-ultramafic massif, southeastern Brazil: indication of an...Barium phlogopite from the Jacupiranga carbonatite, Brazil. American Mineralogist 67, 997-1000. Giuliani, |
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Ponte Nova, Minas Gerais, Brazil