Formerly known as chabazite, the species has been recently analyzed as Chabazite-Ca according to the latest recommendations for zeolites from the International Mineralogical Association.
Color is usually colorless, white or tan.
Luster is vitreous to dull to pearly. Diaphaneity is transparent to translucent to opaque. Fracture is uneven. Hardness is 4 - 5. Streak is white.