Hyalite

A sample of hyalite

Fluorescent hyalite under ultraviolet light

Hyalite is a form of opal with a glassy and clear appearance which exhibits an internal play of colors and has natural inclusions. It is also called Muller's glass, water opal and jalite. Its Mohs hardness is 5.5 to 6 and it has a specific gravity of 2.1. It is an amorphous form of silica (SiO₂). Its has a conchoidal fracture, a vitreous luster and a white streak. It is sometimes mistaken for resin opal, since they both look like little globs. It glows bright green under blacklight.

The name Müller's glass derived from the name of its discoverer, Franz-Joseph Müller von Reichenstein

External links

• Mineralgallery.co.za
• Mindat data

This article about a specific mineral or mineraloid is a stub. You can help Wikipedia by expanding it.v · Categories: Quartz varieties Mineral stubs Wikimedia Foundation. 2010. Игры ⚽ Поможем написать реферат Willem van Otterloo Sutherland (UK Parliament constituency) 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 — 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}… …   The Collaborative International Dictionary of English 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 18+ © Academic, 2000-2024 Contact us: Technical Support, Advertising Dictionaries export, created on PHP, Joomla, Drupal, WordPress, MODx. Mark and share Search through all dictionaries Translate… Search Internet Share the article and excerpts Direct link … Do a right-click on the link above and select “Copy Link”