Chemical Formula: Ca2Al4Si4O16·9(H2O)
Help on Composition: Composition: Molecular Weight = 718.55 g
 
Hydrogen 2.52 % H 22.56 % H2O 0.00 %
Oxygen 55.67 % O 0.00 % 0.00 %
Aluminum 15.02 % Al 28.38 % Al2O3 0.00 %
Silicon 15.63 % Si 33.45 % SiO2 0.00 %
Calcium 11.16 % Ca 15.61 % CaO 0.00 %


100.00 % 100.00 %
 
Help on Empirical Formula: Empirical Formula: Ca2Al4Si4O16·9(H2O)
Help on Environment: Environment: Alteration product of plagioclase
Help on Locality: Locality: Albani Mountains, south of Rome, Italy.. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named after the Italian mineralogist, C. G. Gismondi (1762-1824)
Help on Synonym: Synonym: Abrazite
Aricite
Gismondite