[ Top ] [ Japanese ]
Chabazite-Ca (Photo)
Year of discovery: 1788 (Colle de Lares, Italy), 1936 (Japan)
Locality list: 22 localities of chabazite-Ca
- CaAl2Si4O12,6H2O
- (Ca,Na2,K2,Sr)Al2Si4O12,6H2O
- [Ca2+][(AlSi2O6)2]2-,6H2O
- Color: Colorless, White
- Streak: White
- Luster: Vitreous
- Diaphaneity: Transparent-Translucent
- Habit: Rhombohedral
- Twin: Intrusive twin
- Cleavage: Distinct on {1011} (3 planes)
- Hardness: 4-5
- Density: 2.1
- System: Triclinic, Pseudohexagonal
- Group: (-1), P(-1)
- Lattice: a=9.4, b=9.3, c=9.4, α=94.3, β=94.2, γ=94.3
Etymology: Chalza (hail) in Greek