 | | Journal (article/letter/editorial) | | Mineral. 2006, 18, 127–138 Unusual Ti and Zr aegirine-augite and potassic magnesio-arfvedsonite in the peralkaline...alkaline mafic phases: aegirine-augites, sodic-calcic and sodic amphiboles. Aegirine-augites are Ti-rich...and Zr present antipathetic relationships in aegirine-augite, as their repartition depends on the agpaicity...strongly agpaitic conditions, whereas Zr enters aegirine-augite in mildly agpaitic conditions. Composition...leading to the formation of these peculiar aegirine-augite and potassic magnesio-arfvedsonite. Key-words: |  | Dyulgerov, Momchil, Oberti, Roberta, Platevoet, Bernard, Kadiyski, Milen, Rusanov, Ventzislav (2019) Potassic-magnesio-arfvedsonite, KNa2(MgFe2+Fe3+)5Si8O22(OH)2: mineral description and crystal chemistry. Mineralogical Magazine, 83 (3) 465-472 doi:10.1180/mgm.2018.135 | Journal (article/letter/editorial) | | association with quartz, potassium feldspar and aegirine-augite from the Buhovo-Seslavtsi pluton (Bulgaria)...arfvedsonites are the amphiboles from Gatineau, Canada (Hogarth and LaPointe, 1984), Ilimaussaq, Lovozero...minette (Cornwall) and in the lamproite dyke (Baffin Island) respectively, and called them ‘potassium m...composed of potassium feldspar, amphibole, aegirine or aegirine-augite, and quartz. The amphibole usually crystallized...after potassium feldspar, along with or prior to aegirine, and sometimes they form rims around biotite. |  | | Journal (article/letter/editorial) | | Carleton University, Ottawa, Ontario, K1S 5B6 Canada ABSTR ACT The Turiy Massif, on the southern coast...2458 Huntley Rd, Stittsville, Ontario, K2S 1B8 Canada # 2003 The Mineralogical Society cone sheet intrusions...olivine and green-brown, inclusion-rich, zoned, augite phenocrysts. K-poor nepheline forms most of the...poikilitically enclosing rare, euhedral and fine-grained aegirine crystals. calcite, garnet, magnetite, nepheline...containing magnetite blebs (bottom right), and abundant augite including anhedral-euhedral grains <1 4 mm in diameter |  | | Book (edition) | | Johannsenite, Augite–Ferroaugite, Omphacite, Jadeite, Kosmochlor, Aegirine, Aegirine-augite, Spodumene 102...Science and Technology Mineralogical Association of Canada for figures from The Canadian Mineralogist The Mineralogical...Forsterite, serpentinite, Douglas Creek, South Island, New Zealand (Cooper, A.F., 1976, J. Geol. Geophys...metasomatized limestone, Blue Bell Mine, British Columbia, Canada (Mossman, D.J. & Pawson, D.J., 1976, Can. Min....H2O (9) Fayalite, often associated with ferroan augite and grunerite, occurs in medium-grade thermally |  | | Book | | William S. Fyfe, (University of Western Ontario, Canada) and Professor Peter J. Wyllie, (California Institute...analogues. This is also true in the Highwood Mountains region of the USA. Such occurrences may be understood...Brazil . Silica-Undersaturated Potassic Lavas from Canada . . . . . . 4.7.1 Kirkland Lake, Ontario . . .... . 4.13.1 Volcanic Activity in the Aeolian Arc Region. . 4.13.2 K-Rich Rocks of the Tristan da Cunha...13.3 Trachyte-Phonolite-Bearing Lavas of Ulleung Island, South Korea . . . . . . . . . . . . . . . . . |  | | Book | | Mlneraloglcal Association of Canada AssociJLion mineralog1que du Canada 2 � lossary of Mineral Synonyms...Mineralogical Association of canada Association minCralogique du Canada 2 Robert F. Martin EDITOR...PHOTOENGRAVER AND PRINTER Mineralogical Association of Canada PUBLISHER P.O. Box 78087 Meriline Postal Outlet...Outlet 1460 Merivale Road Ouawa, Ontario, Canada K2E 181 e-mail: canmin.mac.ottawa@sympatico.ca All rigths...Mineralogical Association of Canada ISBN 0-921294-44-1 Primed in Canada PHOTOGRAPH ON THE COVER Courtesy |
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