Mineralogy Database

Beidellite Mineral Data

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General Beidellite Information

Help on Chemical  Formula: Chemical Formula: Na0.5Al2(Si3.5Al0.5)O10(OH)2•n(H2O)
Help on Composition: Composition: Molecular Weight = 389.27 gm
   Sodium     2.95 %  Na    3.98 % Na2O
   Aluminum  17.33 %  Al   32.74 % Al2O3
   Silicon   25.25 %  Si   54.02 % SiO2
   Hydrogen   1.04 %  H     9.26 % H2O
   Oxygen    53.43 %  O
            ______        ______ 
            100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Na0.5Al2.5Si3.5O10(OH)2•(H2O)
Help on IMA Status: IMA Status: Valid Species (Pre-IMA) 1925
Help on Locality: Locality: Beidell, Colorado, USA.. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named after its locality.
Help on Name Pronunciation: Name Pronunciation: Beidellite + Pronunciation Say BEIDELLITE
Help on Synonym: Synonym: Bentonite
  Montmorillonite(Ca)
  Montmorillonite(Na)