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It occurs more rarely on the surface of kristiansenite.",6,"2.672","Vitreous","Transparent","White","Colorless",[54,55],"colorless","white",[55],"Does not fluoresce under ultraviolet light","None Observed","Conchoidal","brittle","Uniaxial","-","1.567","1.564",1.564,1.567,"Non-pleochroic","Calculated: 0.003","In miarolitic vug in a granitic pegmatite (late-stage, enriched in Y).","Type material is deposited in the collections of the Royal Ontario Museum, Toronto, Ontario, Canada, catalogue number M43863.","Milarite Group. Unique combination of elements (status: 2023).\r\nThe Y-analog of oftedalite and the Y-Ca-Be analog of klöchite. In the end-member structure of agakhanovite-(Y), the A site is occupied equally by Y and Ca, and the B site is vacant.\r\n\r\nNot...","Named after Atali A. Agakhanov (b. 1971), mineralogist at the Fersman Mineralogical Museum, Moscow, Russia, who has worked on a wide variety of pegmatite minerals, and in particular on the minerals of the milarite group.  The suffix follows the Levinson rule for minerals with essential REE, denoting predominant yttrium.","2025-08-11 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A., Hatert, F., Pasero, M., Mills, S. J. (2013) New minerals and nomenclature modifications approved in 2013. CNMNC Newsletter No 18. \u003Ci>Mineralogical Magazine\u003C\u002Fi>,  77 (8) 3249-3258 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1180\u002Fminmag.2013.077.8.15'>doi:10.1180\u002Fminmag.2013.077.8.15\u003C\u002Fa>","10.1180\u002Fminmag.2013.077.8.15",{"id":271,"year":29,"html":272,"doi":273},397387,"Hawthorne, Frank C., Abdu, Yassir A., Ball, Neil A., Černý, Petr, Kristiansen, Roy (2014) Agakhanovite-(Y), ideally (YCa)◻\u003Csub>2\u003C\u002Fsub>KBe\u003Csub>3\u003C\u002Fsub>Si\u003Csub>12\u003C\u002Fsub>O\u003Csub>30\u003C\u002Fsub>, a new milarite-group mineral from the Heftetjern pegmatite, Tordal, Southern Norway: Description and crystal structure. \u003Ci>American Mineralogist\u003C\u002Fi>,  99 (10) 2084-2088 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.2138\u002Fam-2014-4880'>doi:10.2138\u002Fam-2014-4880\u003C\u002Fa> \u003Ca target='_blank' href='https:\u002F\u002Frruff.info\u002Frruff_1.0\u002Fuploads\u002FAM99_2084.pdf' class='refpdflink'>\u003C\u002Fa>","10.2138\u002Fam-2014-4880",{"id":275,"year":276,"html":277,"doi":11},16962566,2017,"(2017) Agakhanovite-(Y). \u003Ci>Handbook of Mineralogy\u003C\u002Fi>. 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