Heulandite meaning

hyo͝olən-dīt
A white, red, or yellow zeolite mineral, CaO·Al2 O3 · 6SiO2 · 5H2 O.
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A semihard, lightweight, monoclinic zeolite, (Na,Ca)4-6Al6(Al,Si)4Si26O7224H2O.
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(mineralogy) A common mineral of the zeolite group with monoclinic crystals, the most usual form being heulandite-Ca (Ca,Na)2-3Al3(Al,Si)2Si13O36·12H2O.
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Origin of heulandite

  • After Henry Heuland , 19th-century British mineralogist

    From American Heritage Dictionary of the English Language, 5th Edition

  • Heuland +‎ -ite after British mineral collector John Henry Heuland (1778-1856).

    From Wiktionary