leucophanite


Also found in: Wikipedia.

leucophanite

[¦lü·kō′fa‚nīt]
(mineralogy)
(Na,Ca)2BeSi7(O,F,OH)7 Greenish mineral composed of beryllium sodium calcium silicate containing fluorine and occurring in glassy, tabular crystals.
Mentioned in ?
References in periodicals archive ?
Associated minerals at Nanna are aegirine, astrophyllite, analcime, calcio-ancylite-(Ce), catapleiite, fluorite, galena, gibbsite, leucophanite, microcline, natrolite, nafertisite, orthoclase, polylithionite, sodalite (var.
In addit ion there were Scandinavian classics like loose, sharp 2-cm pyritohedrons of cobaltite and sharp, lustrous pseudo-octahedrons of glaucodot from Sweden; well crystallized leucophanite, columbite and thortveitite from Norway; and richly brownish red, euhedral crystals of eudialyte to 2 cm in complex ultra-alkaline matrix, not from the Kola Peninsula, Russia, but from 19th-century localities in Greenland.
The syenite pegmatites contain calcium catapleiite, titanium-rich lavenite, lorenzenite, cesium-rich astrophyllite, kupletskite, pyrophanite, leucophanite, strontium-apatite, loparite, calcium-rich seidozerite, strontium-rich and zirconium-rich perrierite, brookite, landauite, murataite, polylithionite, brewsterite, chabazite, monazite, ancylite, bertrandite, vlasovite, hambergite.