General Information:
Chemical Formula:
(K2,Ca,Na2,Sr,Mg)[Al2Si4O12]·6(H2O)
Environment:
Amygdaloidal cavities of basalt and related rocks.
IMA Status:
Approved IMA (Dana # Added)
Locality:
Common worldwide.
Name Origin:
From Gk. chabazios, tune or melody, one of twenty stones named in the poem Peri lithos. The K-dominant member of the chabazite series.
Physical Properties:
Cleavage:
[1011] Imperfect
Color:
colorless, white, yellowish, pinkish, or reddish white.
Density:
2.05 - 2.15, Average = 2.09
Diaphaniety:
Translucent to transparent
Habits:
Pseudo Cubic - Crystals show a cubic outline., Druse - Crystal growth in a cavity which results in numerous crystal tipped surfaces.,
Hardness:
4 - Fluorite
Luminescence:
Non-fluorescent.
Luster:
Vitreous (Glassy)
Streak:
white
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