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  • leonhardite — le·on·har·dite …   English syllables

  • leonhardite — ˌlāənˈhärˌdīt noun ( s) Etymology: German leonhardit, from Karl C. von Leonhard died 1862 German mineralogist + German it ite : a laumontite altered by loss of water …   Useful english dictionary

  • Laumontite — is a mineral, one of the zeolite group. Its molecular formula is Calcium(AluminiumSilicon|2Oxygen|6)2 middot;4H2O, a hydrated calcium aluminium silicate. Potassium or sodium may substitute for the calcium but only in very small amounts.It is… …   Wikipedia

  • Karl Cäsar von Leonhard — Karl Cäsar Leonhard, Lithographie von Rudolf Hoffmann, 1857 Karl Cäsar Ritter von Leonhard (* 12. September 1779 in Rumpenheim; † 23. Januar 1862 in Heidelberg) war ein deutscher Mineraloge. Er war der Vater von Gustav von Leonhard …   Deutsch Wikipedia

  • Laumontite — Catégorie IX : silicates[1] Laumontite mine Himalaya États Unis …   Wikipédia en Français

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