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| Formula | CaAl2Si4O12 ∙ 2H2O |
| | Optic class & sign | Biaxial positive or negative |
| | Optical orientation | |
| | Optical plane | |
| | Relief | |
| | Refractive indices | nx =
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ny =
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|
nz =
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| | Birefringence (max.) | |
| | | |
| | Optic Angle
| 2Vx
|
| | 2Vz
|
| | Sign of elongation | |
| | Interference figure | |
| | Colour / pleochroism | |
| | Zoning | |
|
|
| Form | Habit | |
| | | Surface | |
| | Cleavage | |
| | Twinning | |
| | Extinction | |
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| Reaction textures | |
| | Alteration / decomposition | |
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| Occurence | Ign | |
| | | Met | |
| | | Sed | |
| | | Hyd | |
| | | Other | |
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| Distinctive properties | |
| | Additional comments | n-Δn chart: Anl – analcime, Cbz – chabazite, Fau – faujasite, Gis - gismondine,
Gme – gmelinite, Hrm – harmotome, Php – phillipsite, Wrk - wairakite |
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