Mineralogy Database

Gibbsite Mineral Data

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General Gibbsite Information

Help on Chemical  Formula: Chemical Formula: Al(OH)3
Help on Composition: Composition: Molecular Weight = 78.00 gm
   Aluminum  34.59 %  Al   65.36 % Al2O3
   Hydrogen   3.88 %  H    34.64 % H2O
   Oxygen    61.53 %  O
            ______        ______ 
            100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Al(OH)3
Help on Environment: Environment: Lateritic soils developed on aluminous rocks in areas of high rainfall.
Help on IMA Status: IMA Status: Valid Species (Pre-IMA) 1822
Help on Locality: Locality: Bauxite deposits of Arkansas, USA. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named after the American collector, G. Gibbs (1776-1833).
Help on Name Pronunciation: Name Pronunciation: Gibbsite Say GIBBSITE
Help on Synonym: Synonym: Hydrargyllite
  ICSD 36233
  PDF 33-18