Halloysite Hal*loy"site (h[a^]l*loi"s[imac]t), n. [Named after Omalius d'Halloy.] (Min.) A claylike mineral, occurring in soft, smooth, amorphous masses, of a whitish color. [1913 Webster]

The Collaborative International Dictionary of English. 2000.

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  • Halloysite — 7Å [1] Catégorie IX : silicates[2] …   Wikipédia en Français

  • Halloysite — is a 1:1 aluminosilicate clay mineral with the empirical formula Al2Si2O5(OH)4. Its main constituents are aluminium (20.90%), silicon (21.76%), and hydrogen (1.56%). Halloysite typically forms by hydrothermal alteration of alumino silicate… …   Wikipedia

  • halloysite — ● halloysite nom féminin (de O. d Halloy, nom propre) Silicate hydraté naturel d aluminium, proche du kaolin, appartenant au groupe des argiles. ⇒HALLOYSITE, subst. fém. MINÉR. Silicate naturel hydraté d aluminium, voisin du kaolin. L halloysite… …   Encyclopédie Universelle

  • halloysite — Clay Clay (kl[=a]), n. [AS. cl[=ae]g; akin to LG. klei, D. klei, and perh. to AS. cl[=a]m clay, L. glus, gluten glue, Gr. gloio s glutinous substance, E. glue. Cf. {Clog}.] 1. A soft earth, which is plastic, or may be molded with the hands,… …   The Collaborative International Dictionary of English

  • halloysite — /heuh loy suyt, zuyt, ha /, n. a refractory clay mineral similar in composition to kaolinite. [1820 30; after Jean Baptiste Julien Omalius d Halloy (1783 1875), Belgian geologist; with site for ITE1, after mineral names formed from surnames… …   Universalium

  • halloysite — (entrée créée par le supplément) (a loi zi t ) s. f. Terme de minéralogie. Silicate alumineux …   Dictionnaire de la Langue Française d'Émile Littré

  • halloysite — hal·loy·site …   English syllables

  • halloysite — həˈlȯiˌsīt, haˈ , ˌzīt noun ( s) Etymology: French, from Omalius d Halloy died 1875 Belg. geologist + French ite : a clay mineral Al2Si2O5(OH)4.nH2O occurring in soft white or light colored masses and in at least two states of hydration …   Useful english dictionary

  • clay mineral — any of a group of hydrous aluminum silicate minerals, as kaolinite, illite, and montmorillonite, that constitute the major portion of most clays. [1945 50] * * * Any of a group of important hydrous aluminum silicates with a layered structure and… …   Universalium

  • Clay minerals — Oxford Clay (Jurassic) exposed near Weymouth, England. Clay minerals are hydrous aluminium phyllosilicates, sometimes with variable amounts of iron, magnesium, alkali metals, alkaline earths, and other cations. Clays have structures similar to… …   Wikipedia

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