hyalite
Opal O"pal, n. [L. opalus: cf. Gr. ?, Skr. upala a rock, stone, precious stone: cf. F. opale.] (Min.) A mineral consisting, like quartz, of silica, but inferior to quartz in hardness and specific gravity. [1913 Webster]

Note: The {precious opal} presents a peculiar play of colors of delicate tints, and is highly esteemed as a gem. One kind, with a varied play of color in a reddish ground, is called the {harlequin opal}. The {fire opal} has colors like the red and yellow of flame. {Common opal} has a milky appearance. {Menilite} is a brown impure variety, occurring in concretions at Menilmontant, near Paris. Other varieties are {cacholong}, {girasol}, {hyalite}, and {geyserite}. [1913 Webster]


The Collaborative International Dictionary of English. 2000.

Look at other dictionaries:

  • hyalite — [ jalit ] n. f. • 1827; du rad. de hyalin 1 ♦ Minér. Variété transparente d opale. 2 ♦ Méd. Inflammation du corps vitré de l œil. ● hyalite nom féminin Variété transparente et vitreuse d opale, présentant une structure globulaire. Variété de… …   Encyclopédie Universelle

  • Hyalite — Hy a*lite, n. [Gr. y alos glass: cf. F. hyalite.] (Min.) A pellucid variety of opal in globules looking like colorless gum or resin; called also {M[ u]ller s glass}. [1913 Webster] …   The Collaborative International Dictionary of English

  • hyalite — [hī′ə līt΄] n. [ HYAL(O) + ITE1] a colorless, transparent or translucent variety of opal …   English World dictionary

  • Hyalite — Opal AN Opal AN est la terminologie retenue pour désigner une variété d opale la HYALITE. La formule chimique est celle de l opale : SiO2nH2O. L etymologie de hyalite dérive du grec ancien ὕαλος, « qui a la transparence du verre » …   Wikipédia en Français

  • Hyalite — A sample of hyalite …   Wikipedia

  • hyalite — (i a li t ) s. f. Terme de minéralogie. Variété de quartz qui ressemble à du verre. ÉTYMOLOGIE    En grec, verre, et la finale ite qui désigne une substance. SUPPLÉMENT AU DICTIONNAIRE HYALITE. Ajoutez : 2°    •   Sorte de verre noir obtenu en… …   Dictionnaire de la Langue Française d'Émile Littré

  • hyalite — noun Etymology: German Hyalit, from Greek hyalos Date: 1794 a colorless opal that is clear as glass or sometimes translucent or whitish …   New Collegiate Dictionary

  • hyalite — /huy euh luyt /, n. a colorless variety of opal, sometimes transparent like glass, and sometimes whitish and translucent. [1785 95; HYAL + ITE1] * * * …   Universalium

  • hyalite — noun A form of opal …   Wiktionary

  • hyalite — n. colorless type of opal (at times transparent like glass) …   English contemporary dictionary

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