wollastonite

wollastonite
/wool"euh steuh nuyt'/, n.
a mineral, calcium silicate, CaSiO3, occurring usually in fibrous white masses.
[1815-25; named after W. H. WOLLASTON; see -ITE1]

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      white, glassy silicate mineral that commonly occurs as masses or tabular crystals with other calcium-containing silicates (e.g., diopside, tremolite, garnet, and epidote) in metamorphosed limestones. Deposits are found in Ciclova Romînă, Rom.; Monte Somma, Italy; and Pargas, Fin. Occurrences in the United States include Utah; Isle Royale, Mich.; Riverside, Calif.; and Essex county, N.Y., where it is mined. For detailed physical properties, see silicate mineral (table).

      Wollastonite, the most common of the three forms of calcium silicate, CaSiO3, is used in many ceramic products, including floor and wall tiles, electrical insulators, and porcelain fixtures. It is also used in welding rod coatings and in paints.

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Universalium. 2010.

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  • Wollastonite — Catégorie IX : silicates[1] Wollastonite Monte Somma, Italie (Vue …   Wikipédia en Français

  • wollastonite — ● wollastonite nom féminin (de W. H. Wollaston, nom propre) Silicate naturel de calcium, triclinique. ⇒WOLLASTONITE, subst. fém. MINÉR. Silicate naturel de calcium. La wollastonite (dédiée à Wollaston) est à la fois un élément accessoire de… …   Encyclopédie Universelle

  • Wollastonite — Wol las*ton*ite, n. [After Dr. W. H. Wollaston, an English chemist, who died in 1828.] (Min.) A silicate of lime of a white to gray, red, or yellow color, occurring generally in cleavable masses, rarely in tabular crystals; tabular spar. [1913… …   The Collaborative International Dictionary of English

  • wollastonite — [wool′əs tən īt΄] n. [after William H. Wollaston (1766 1828), Eng physicist] a hard, light colored, triclinic mineral, CaSiO3, used in making ceramic tile, wallboard, etc.; calcium silicate …   English World dictionary

  • Wollastonite — Infobox mineral name = Wollastonite category = Silicate mineral boxwidth = boxbgcolor = caption = formula = Calcium silicate, CaSiO3 molweight = color = white, colorless or gray habit = rare tabular crystals commonly massive in lamellar,… …   Wikipedia

  • wollastonite — volastonitas statusas T sritis chemija apibrėžtis Mineralas. formulė Ca₃[Si₃O₉] atitikmenys: angl. wollastonite rus. волластонит …   Chemijos terminų aiškinamasis žodynas

  • wollastonite — noun Etymology: William H. Wollaston Date: 1823 a triclinic mineral consisting of a native calcium silicate occurring usually in cleavable masses …   New Collegiate Dictionary

  • wollastonite — noun A grey inosilicate mineral, mostly calcium silicate, CaSiO, found deposited in limestone …   Wiktionary

  • wollastonite — (entrée créée par le supplément) (ou la sto ni t ) s. f. Terme de minéralogie. Silicate de chaux, incolore, translucide …   Dictionnaire de la Langue Française d'Émile Littré

  • wollastonite — [ wʊləstənʌɪt] noun a white or greyish mineral consisting of calcium silicate, used as a source of rock wool. Origin C19: named after the English chemist William Hyde Wollaston + ite1 …   English new terms dictionary

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