Mineral phase
IMA name
Chabazite series
Type
Class
silicate mineral
Compound type
tektosilicate
Chemical composition
Formula
$(Na_2,K_2,Ca,Sr)(Al_2Si_4O_{12})\bullet6(H_2O)$
Chemical formula
(Na2,K2,Ca,Sr)(Al2Si4O12)•6(H2O)
Elemental formula
(Na)0-2 (Ca)0-1 (K)0-2 (Sr)0-1 Al2 Si4 O18 H8
Isotope mixture type
terrestrial abundance
  Formula Name Family Number min-max Isotope mole fraction State Relevance
$Na$ Sodium element 0 - 2 constituent element main
$Ca$ Calcium element 0 - 1 constituent element main
$K$ Potassium element 0 - 2 constituent element main
$Sr$ Strontium element 0 - 1 constituent element main
$Al$ Aluminium element 2 constituent element main
$Si$ Silicon element 4 constituent element main
$O$ Oxygen element 18 constituent element main
$H$ Hydrogen element 8 constituent element main
Composition comments
Ca, Na, and K are dominant species, with Sr and Mg occasionallys significant, Ba minor. Other impurity: Fe
Oxides
Formula $Na_{2}O$ $K_{2}O$ $SrO$ $CaO$ $BaO$ $MgO$ $Al_{2}O_{3}$ $SiO_{2}$ $H_{2}O$
Mass fraction (%)

Strunz

Class
silicates (09)
Division
tektosilicate with zeolitic H2O (09.G)
Family
Chains of 6-membered rings – tabular zeolites (09.GD)
Code
09.GD.10

Dana

Major class
silicates (VIII)
Class
tectosilicate zeolite group (77)
Type
true zeolites (77.01)
Group
Chabazite and related species (77.01.02)
End-members
Phase type
crystalline
Crystal system
various
Crystal class
various
Crystal class symbol
various
Crystal spacegroup
various
Comments
Trigonal - Hexagonal Scalenohedral; -3m (D3d),R-3m except for chabazite-Ca: Triclinic - Pinacoidal; 1 (C1), P1
Molar mass
504.66 - 534.62 $g/mol$
Density
2.05 - 2.16 $g/cm^3$
State NTP
solid
Pure color
colorless
Color
Colorless, White, Yellowish, Pinkish, Reddish white, Green, Pink, Yellow
Diaphaneity
transparent to translucent
Luster
vitreous
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