melilite

/mel"euh luyt'/, n.
a sorosilicate mineral group, consisting chiefly of sodium, calcium, and aluminum silicates, occurring in igneous rocks.
[1790-1800; < NL melilithus, equiv. to Gk méli honey + líthos -LITE]

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      any member of a series of silicate minerals that consist of calcium silicates of aluminum and magnesium; gehlenite is the aluminous end-member and åkermanite the magnesian end-member. These minerals crystallize from calcium-rich, alkaline magmas and from many artificial melts and blast-furnace slags. They occur in thermally metamorphosed limestones at contact zones and in impure carbonate rocks altered to feldspathoidal rocks by basic magmas. For chemical formulas and detailed physical properties, see silicate mineral (table).

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Universalium. 2010.

Look at other dictionaries:

  • Melilite — Orthite and melilite (blue) with quartz, from a thin section in crossed polarized light. General Category Sorosilicates …   Wikipedia

  • Melilite — Mélilite Les minéraux du groupe de la mélilite sont des silicates qui ont pour formule générale [8]X2[4]Y[4]Z2O7, où [N] signifie nombre de coordination N. Ce groupe comprend plusieurs minéraux, les plus importants étant les suivants :… …   Wikipédia en Français

  • Melilite — Mel i*lite (m[e^]l [i^]*l[imac]t), n. [Gr. me li honey + lite; cf. F. m[ e]lilithe.] (Min.) A mineral occurring in small yellow crystals, found in the lavas (melilite basalt) of Vesuvius, and elsewhere. [Written also {mellilite}.] [1913 Webster] …   The Collaborative International Dictionary of English

  • mélilite — ● mélilite nom féminin Aluminosilicate naturel de calcium, quadratique, des roches volcaniques sous saturées en silice …   Encyclopédie Universelle

  • Mélilite — Les minéraux du groupe de la mélilite sont des silicates qui ont pour formule générale [8]X2[4]Y[4]Z2O7, où [N] signifie nombre de coordination N. Ce groupe comprend plusieurs minéraux, les plus importants étant les suivants :… …   Wikipédia en Français

  • melilite — ˈmeləˌlīt noun ( s) Etymology: French mélilite, from méli meli + lite : an often honey yellow mineral (Ca,Na2)(Mg,Fe,Al)(Si,Al)2O7 occurring in small tetragonal crystals that is a silicate of sodium, calcium, aluminum, and …   Useful english dictionary

  • melilite — noun any mineral consisting of a solid solution of gehlenite (CaAlSiO) and akermanite (CaMgSiO) …   Wiktionary

  • melilite — me·li·lì·te s.f. TS mineral. minerale di colore giallo, grigio o bruno, costituito da silicato di calcio, sodio, alluminio e magnesio {{line}} {{/line}} DATA: 1957. ETIMO: comp. di meli e 1 lite …   Dizionario italiano

  • melilite — pl.f. meliliti …   Dizionario dei sinonimi e contrari

  • melilite — mel·i·lite …   English syllables

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