Chemical Formula: Al2O3·(SiO2)1·3-2·((H2O))2·5-3
Help on Composition: Composition: Molecular Weight = 225.11 g
 
Aluminum 23.97 % Al 45.29 % Al2O3 0.00 %
Silicon 16.22 % Si 34.70 % SiO2 0.00 %
Hydrogen 2.24 % H 20.01 % H2O 0.00 %
Oxygen 57.57 % O 0.00 % 0.00 %
100.00 % 100.00 %
 
Help on Empirical Formula: Empirical Formula: (Al2O3)(SiO2)1.3·2.5(H2O)
Help on Environment: Environment:
Help on Locality: Locality: Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: From the Greek allos - "other" and phanos - "to appear."
Help on Synonym: Synonym: Schrotterite
Protoallophane