Mineralogy Database

Endellite Mineral Data

Search Webmineral :

General Endellite Information

Help on Chemical  Formula: Chemical Formula: Al2Si2O5(OH)4•2(H2O)
Help on Composition: Composition: Molecular Weight = 294.19 gm
   Aluminum  18.34 %  Al   34.66 % Al2O3
   Silicon   19.09 %  Si   40.85 % SiO2
   Hydrogen   2.74 %  H    24.49 % H2O
   Oxygen    59.82 %  O
            ______        ______ 
            100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Al2Si2O5(OH)4•2(H2O)
Help on Environment: Environment: Formed by weathering or hydrothermal alteration of aluminosilicate minerals. Dehydrates to halloysite above 400 deg C.
Help on IMA Status: IMA Status: Discredited IMA 1967 (Dana # Added)
Help on Locality: Locality: North Gardiner mine, Bedford, Lawrence County, Indiana, USA. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named in 1943 for Kurt Endell (1887{?), German geologist, one of the discoverers of the mineral.
Help on Synonym: Synonym: Hydrohalloysite