Formula : Ca(Al2Si4)O12:4H2O

Space group: 
Monoclinic - Prismatic H-M Symbol (2/m) Space Group: C 2/m
Dana class: (77) Tectosilicate Zeolite group (77.1) true zeolites (77.1.1) Analcime and related species
High temperature: 
The structure of zeolite are very responsive in temperature and/or water-vapor pressure. Some "robust" zeolites can be heated to high temperatures and can be completely dehydrated while maintaining their original structure.
Geological context: 
occurs in a wide range of environments: secondary mineral in basalts and andesites, metamorphic rocks and granites, copper veins, Sedimentary-metamorphic- hydrothermally altered rocks, alteration product of cementious materials.

Dernière mise à jour le 25.01.2021


T(°C) 0 25 60 100 150 200 250 300
log10K 14.81 11.69 7.83 4.19 0.52 -2.51 -5.22 -7.84