/ep"seuh muyt'/, n. Mineral.
the natural form of Epsom salt, Mg2SO4·7H2O, found as a crust in caves and lake deposits.
[1805-15; named after EPSOM; see -ITE1]

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 a common sulfate mineral, hydrated magnesium sulfate (MgSO4·7H2O). Its deposits are formed by evaporation of mineral waters, as at Epsom, Surrey, Eng., where it was discovered in 1695. It also is found as crusts and efflorescences in coal or metal mines, in limestone caves, and in the oxidized zones of sulfide ore deposits. The purified compound is used in medicine as Epsom salts. For detailed physical and mineralogic properties, see sulfate mineral (table).

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Universalium. 2010.

Look at other dictionaries:

  • Épsomite — Épsomite[1] Catégorie VII : sulfates, sélénates tellurates, chromates, molybdates, tungstates[2] …   Wikipédia en Français

  • EPSOMITE — Se présentant généralement en croûtes, en efflorescences ou en groupements de fines aiguilles, ce sulfate de magnésium hydraté cristallise dans le système orthorhombique. Les cristaux peuvent paraître tétragonaux de par la présence d’un angle… …   Encyclopédie Universelle

  • Epsomite — is a hydrous magnesium sulfate mineral with formula MgSO4·7H2O or simply MgSO4. Epsomite forms as encrustations or efflorescences on limestone cavern walls and mine timbers and walls, as a volcanic fumaroles, and as rare beds in evaporite layers …   Wikipedia

  • Epsomite — Catégorie VII : sulfates, sélénates tellurates, chromates, molybdates, tungstates Catégorie Minéral Formule brute MgSo47H20 Identification …   Wikipédia en Français

  • Epsomite — Ep som*ite, n. Native sulphate of magnesia or Epsom salt …   The Collaborative International Dictionary of English

  • epsomite — s.f. [dal nome della città ingl. di Epsom]. (miner.) [minerale rombico, solfato eptaidrato di magnesio, usato come purgante] ▶◀ Ⓖ sale inglese …   Enciclopedia Italiana

  • epsomite — epsomitas statusas T sritis chemija apibrėžtis Mineralas. formulė Mg[SO₄]·7H₂O atitikmenys: angl. epsomite rus. эпсомит …   Chemijos terminų aiškinamasis žodynas

  • epsomite — noun A saline evaporite, consisting of magnesium sulphate, also found in fumaroles, with the chemical formula MgSO·7HO. Syn: Epsom salts …   Wiktionary

  • epsomite — (entrée créée par le supplément) (è pso mi t ) s. f. Sulfate de magnésie qui se rencontre en veines ou en efflorescences, et aussi en dissolution dans certaines eaux minérales …   Dictionnaire de la Langue Française d'Émile Littré

  • epsomite —    A cave mineral MgSO4●7H2O [11] …   Lexicon of Cave and Karst Terminology

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