By far the best crystals come from the famous zeolite quarries in Poona, India. Crystal aggregates consist of spherical rosettes with jutting pointed crystals. The deep blue color of even the smallest cavansite crystals is truly amazing. A beautiful blue cavansite rosette perched on top of the muted colors of the typical zeolites makes a dramatic crystal association. Cavansite's rarity and beauty explain its recent popularity.
Color is greenish-blue to ocean blue.
Luster vitreous to pearly. Transparency transparent to translucent. Orthorhombic Crystal Habits radiating acicular crystals forming spherical crystal clusters. Cleavage perfect in one direction. Hardness 3 - 4 Specific Gravity is approximately 2.33 Streak is blue.