triphylite

/trif"euh luyt'/, n.
a mineral, a rare phosphate of lithium, iron, and manganese, usually occurring in masses of a bluish or greenish color. Also called triphyline /trif"euh leen', -lin/.
[1830-40; TRI- + Gk phyl(é) tribe, PHYLE + -ITE1; r. triphyline < G Triphylin]

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      common phosphate mineral, lithium iron phosphate (LiFePO4), usually forming bluish or grayish, glassy masses in lithium- and phosphate-rich granite pegmatites. It forms a solid-solution series with the similar, but more brightly coloured (brown, yellow, or salmon), lithiophilite in which manganese replaces iron in the molecular structure; that is, a complete chemical variation exists in nature between the pure iron-bearing compound and the pure manganese-bearing compound. Triphylite and lithiophilite are readily weathered. When wetted, as by atmospheric moisture, the lithium ions are leached from the structure, and the iron and then manganese are oxidized to compensate for the valence (combining power) change. When subjected to hydrothermal solutions, triphylite and lithiophilite are altered to siderite, rhodochrosite, and hydrated normal phosphate minerals. For detailed physical properties, see phosphate mineral (table).

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Universalium. 2010.

Look at other dictionaries:

  • Triphylite — Triph y*lite, n. [Pref. tri + Gr. ? a family, class. So called in allusion to its containing three phosphates.] (Min.) A mineral of a grayish green or bluish color, consisting of the phosphates of iron, manganese, and lithia. [1913 Webster] Note …   The Collaborative International Dictionary of English

  • triphylite — triph·y·lite …   English syllables

  • triphylite — …   Useful english dictionary

  • LITHIOPHILITE-TRIPHYLITE — La série isomorphe de la lithiophilite triphylite présente un spectre continu de solutions solides entre deux pôles: l’un, manganésifère, de formule chimique [Li (Mn++, Fe++) (PO4)], est la lithiophilite; l’autre, ferrifère, de formule [Li (Fe++ …   Encyclopédie Universelle

  • Triphylin — aus New Hampshire, Vereinigte Staaten Chemische Formel LiFePO4 Mineralklasse Phosphate 8.AB.10 (8. Auflage 7/A.02 10) (nach Strunz) 38.01.01.01 (nach Dana …   Deutsch Wikipedia

  • Hétérosite — [1] Catégorie VIII : phosphates, arséniates, vanadates[2] …   Wikipédia en Français

  • Lithiophilite — is a mineral containing the element lithium. It is lithium manganese(II) phosphate with formula: LiMnPO4. It occurs in pegmatites often associated with triphylite to which it is closely related. Triphylite being virtually the same mineral except… …   Wikipedia

  • Phosphate minerals — ▪ Table Phosphate minerals name colour lustre Mohs hardness specific gravity amblygonite white to creamy white; slightly tinted vitreous to greasy 5½–6 3.0–3.1 apatite carbonate apatite variable, greens predominating vitreous 5 2.9–3.2… …   Universalium

  • List of minerals S-T (complete) — It is currently not possible to have a complete list of minerals . The International Mineralogical Association is the international group that recognises new minerals and new mineral names, however minerals discovered before 1959 did not go… …   Wikipedia

  • Alluaudite — Alluaudite[1] Catégorie VIII : phosphates, arséniates, vanadates[2] …   Wikipédia en Français

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