Polyhalite
Polyhalite Pol`y*ha"lite, n. [Poly- + Gr. ? salt.] (Min.) A mineral usually occurring in fibrous masses, of a brick-red color, being tinged with iron, and consisting chiefly of the sulphates of lime, magnesia, and soda. [1913 Webster]

The Collaborative International Dictionary of English. 2000.

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  • POLYHALITE — La polyhalite est un sulfate hydraté de potassium, de calcium et de magnésium: K2Ca2Mg(SO4)4,2 H2O. D’allure massive ou parfois fibreuse, la polyhalite cristallise dans le système triclinique; les cristaux en tablette sont petits et rares.… …   Encyclopédie Universelle

  • Polyhalite — is an evaporite mineral, a hydrated sulfate of potassium, calcium and magnesium with formula: K2Ca2Mg(SO4)4 middot;2(H2O). Polyhalite crystallizes in the triclinic system although crystals are very rare. The normal habit is massive to fibrous. It …   Wikipedia

  • polyhalite — ▪ mineral       a sulfate mineral in evaporite deposits [K2Ca2Mg(SO4)4·2H2O] that often occurs with anhydrite and halite. Its name, from the Greek words meaning “many salts,” reflects its composition, hydrated sulfates of potassium, calcium, and… …   Universalium

  • polyhalite — polihalitas statusas T sritis chemija apibrėžtis Mineralas. formulė K₂Ca₂Mg[SO₄]₄·2H₂O atitikmenys: angl. polyhalite rus. полигалит …   Chemijos terminų aiškinamasis žodynas

  • polyhalite — noun A mineral usually occurring in fibrous masses, of a brick red color, being tinged with iron, and consisting chiefly of the sulphates of lime, magnesia, and soda …   Wiktionary

  • polyhalite — poly·halite …   English syllables

  • polyhalite — ˌ ̷ ̷ ̷ ̷ˈhaˌlīt, ˈhā noun ( s) Etymology: German polyhalit, from poly + hal + it ite : a mineral K2MgCa2(SO4)4.2H2O occurring usually in fibrous masses of a brick red color due to iron but consisting essentially of hydrous sulfate of calcium,… …   Useful english dictionary

  • Polyhalit — Chemische Formel K2Ca2Mg[SO4]4 • 2H2O Mineralklasse Sulfate, Selenate, Tellurate, Chromate, Molybdate und Wolframate 7.CC.65 (8. Auflage: VI/C.20 10) (nach Strunz) 29.04.05.01 (nach Dana) Kristallsystem triklin (pseudo orthorhombisch) …   Deutsch Wikipedia

  • Evaporite — Cobble encrusted with halite evaporated from the Dead Sea, Israel. Evaporite (  / …   Wikipedia

  • List of minerals N-R (complete) — It is currently not possible to have a complete list of minerals . The International Mineralogical Association is the international group that recognises new minerals and new mineral names, however minerals discovered before 1959 did not go… …   Wikipedia

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