Chemical Formula: (Fe+++,Ti)4Ti3AsO13(OH)
Help on Composition: Composition: Molecular Weight = 666.95 g
 
Hydrogen 0.15 % H 1.35 % H2O 0.00 %
Oxygen 33.58 % O 0.00 % 0.00 %
Titanium 21.54 % Ti 35.93 % TiO2 0.00 %
Iron 33.49 % Fe 47.89 % Fe2O3 0.00 %
Arsenic 11.23 % As 14.83 % As2O3 0.00 %


99.99 % 100.00 %
 
Help on Empirical Formula: Empirical Formula: Fe3+4Ti3AsO13(OH)
Help on Environment: Environment: The Fe++ dominant analog of tomichite and the As+++ dominant analog of derbylite. In hydrothermal veins in a two-mica paragneiss
Help on Locality: Locality: Larchelitini, in the Monte Leone Nappe, Binntal region, western Alps, Switzerland.. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: For Prof. Dr. Stefan Graeser (1935-), in recognition of his extensive research on the oxides and sulfosalts of arsenic in the Binntal region of Switzerland
Help on Synonym: Synonym: IMA1996-010