 | | Journal (article/letter/editorial) | | GIBSON AND JORG METZ 249 The occurrence of cuspidine, foshagite and hillebrandite in calc-silicate xenoliths...Buick Department of Earth Science, La Trobe University, Bundoora, Vic. 3086, Australia. Roger Gibson,... Department of Geology, University of the Witwatersrand, WITS 2050, Johannesburg, South Africa. Thomas...Metz, Department of Earth Science, La Trobe University, Bundoora, Vic. 3086, Australia. ABSTRACT The rare...rare calc-silicate minerals cuspidine, foshagite and hillebrandite occur as late phases in calcsilicate |  | Armbruster, T., Lazic, B., Galuskina, I. O., Galuskin, E. V., Gnos, E., Marzec, K. M., Gazeev, V. M. (2012) Trabzonite, Ca4[Si3O9(OH)]OH: crystal structure, revised formula, new occurrence and relation to killalaite. Mineralogical Magazine, 76 (3) 455-472 doi:10.1180/minmag.2012.076.3.02 | Journal (article/letter/editorial) | | Institute of Geological Sciences, University of Bern, Freiestr. 3, CH-3012 Bern, Switzerland Faculty of Earth...Sciences, Department of Geochemistry, Mineralogy and Petrography, University of Silesia, Be˛dzińska...Bobrzyńskiego 14, 30-348 Cracow, Poland Institute of Geology of Ore Deposits, Geochemistry, Mineralogy and Petrography...Editor: Andrew Christy] ABSTRACT The crystal structure of the rare skarn mineral trabzonite, Ca4[Si3O9(OH)]OH...which contains Si3O10 trimers embedded in a framework of CaO6 8 polyhedra, has orthorhombic symmetry, space |  | | Journal (article/letter/editorial) | | LABRADOR, CANADA Brent E. OWENS§ Department of Geology, College of William and Mary, Williamsburg, Virginia...occurrence of cuspidine as part of a complex symplectitic intergrowth formed from the breakdown of åkermanite...ideal F-bearing composition. Average proportions of phases in the intergrowth are 33% clinopyroxene,...reconstructed bulk-composition of the intergrowth approximately matches the composition of the adjacent åkermanite...exception of Na and Fe, which were probably mobile (or retained in residual åkermanite in the case of Na). |  | Casillas, Ramón, Nagy, Géza, Demény, Attila, Ahijado, Agustina, Fernández, Carlos (2008) Cuspidine–niocalite–baghdadite solid solutions in the metacarbonatites of the Basal Complex of Fuerteventura (Canary Islands) Lithos, 105 (1) 25-41 doi:10.1016/j.lithos.2008.02.003 | Journal (article/letter/editorial) | | solid solutions in the metacarbonatites of the Basal Complex of Fuerteventura (Canary Islands) Ramón Casillas...Metamorphosed carbonatites, located in the Basal Complex of Fuerteventura, Canary Islands (Spain), contain unusual...disilicates with minor Zr contents cover the whole range of cuspidine–niocalite solid solution. Disilicate crystals...always have Nb, too, and can be described as members of the cuspidine–niocalite–baghdadite ternary solid...compositions between niocalite and baghdadite. All of the analyzed crystals have very high Sr contents |
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Chesney Vale, Rural City of Benalla, Victoria, Australia