Mineralogy Database

Heulandite-Ca Mineral Data

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General Heulandite-Ca Information

Help on Chemical  Formula: Chemical Formula: (Ca,Na)2-3Al3(Al,Si)2Si13O36•12(H2O)
Help on Composition: Composition: Molecular Weight = 2,825.14 gm
   Potassium   0.60 %  K     0.72 % K2O
   Barium      0.29 %  Ba    0.33 % BaO
   Sodium      1.03 %  Na    1.38 % Na2O
   Strontium   0.16 %  Sr    0.18 % SrO
   Calcium     5.06 %  Ca    7.09 % CaO
   Magnesium   0.01 %  Mg    0.01 % MgO
   Aluminum    8.95 %  Al   16.91 % Al2O3
   Silicon    26.54 %  Si   56.78 % SiO2
   Hydrogen    1.86 %  H    16.59 % H2O
   Oxygen     55.51 %  O
             ______        ______ 
             100.00 %       99.99 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Ca3.57Sr0.05Ba0.06Mg0.01Na1.26K0.43Al9.37Si26.7O72�26.02(H2O)
Help on Environment: Environment: Low temperature zeolite found in a wide variety of geologic environments: volcanic rocks, metamorphic rocks, pegmatites, tuffs, and deep-sea sediments.
Help on IMA Status: IMA Status: Valid Species (Pre-IMA) 1822
Help on Locality: Locality: Glasgow, Strathclyde (Dumbartonshire), Scotland. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named after the English mineral collector, John Henry Heuland (1778-1856), a British mineral collector and dealer. Ca modifier added by zeolite nomenclature committee.
Help on Name Pronunciation: Name Pronunciation: Heulandite-Ca + Pronunciation Say HEULANDITE-CA
Help on Synonym: Synonym: Beaumontite
  Heulandite
  Lamellar zeolite