Prehnite
Prehnite Prehn"ite, n. [So called from the German Colonel Prehn, who first found it.] (Min.) A pale green mineral occurring in crystalline aggregates having a botryoidal or mammillary structure, and rarely in distinct crystals. It is a hydrous silicate of alumina and lime. [1913 Webster]

The Collaborative International Dictionary of English. 2000.

Look at other dictionaries:

  • Prehnite — Catégorie IX : silicates[1] Prehnite La Combe de la Selle, France 7,8  …   Wikipédia en Français

  • PREHNITE — La prehnite cristallise dans le système orthorhombique. Les cristaux aux formes nettes sont rares, ils se présentent sous la forme de tablettes ou de bâtonnets courts. Il existe plusieurs variétés du minéral: la prehnite crêtée formée de lamelles …   Encyclopédie Universelle

  • Prehnite — is a phyllosilicate of calcium and aluminium with the formula: Ca2Al(AlSi3O10)(OH)2. Limited Fe3+ substitutes for aluminium in the structure. Prehnite crystallizes in the orthorhombic crystal system. It is brittle with an uneven fracture and a… …   Wikipedia

  • prehnite — /pray nuyt, pren uyt/, n. a mineral, hydrous calcium aluminum silicate, Ca2Al2Si3O10(OH)2, occurring in light green reniform aggregates or tabular crystals. [1785 95; named after Col. Van Prehn, 18th century Dutchman who brought it from South… …   Universalium

  • prehnite — prenitas statusas T sritis chemija apibrėžtis Mineralas. formulė Ca₂Al[(OH)₂|AlSi₃O₁₀] atitikmenys: angl. prehnite rus. пренит …   Chemijos terminų aiškinamasis žodynas

  • prehnite — noun A mineral, a basic calcium, aluminium and iron aluminosilicate, which occurs in stalagtitic aggregates or curved crystals, CaAlSiO(OH) …   Wiktionary

  • prehnite — (prè ni t ) s. f. Substance cristalline composée principalement de silice, d alumine et de chaux, rapportée du cap de Bonne Espérance par le colonel Prehn …   Dictionnaire de la Langue Française d'Émile Littré

  • prehnite — preh·nì·te s.f. TS mineral. minerale raro, di colore biancastro, grigio o verdognolo, costituito da silicato di alluminio e calcio, che si presenta in cristalli riuniti in ammassi e cristallizza nel sistema rombico {{line}} {{/line}} DATA: 1819.… …   Dizionario italiano

  • prehnite — prehn·ite …   English syllables

  • prehnite — ˈprāˌnīt, ˈpreˌ noun ( s) Etymology: German prehnit, from Col. Van Prehn 18th century Dutch officer who brought it from the Cape of Good Hope + German it ite (I) : a pale green mineral Ca2Al2Si3O10(OH)2 that occurs in crystalline aggregates… …   Useful english dictionary

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