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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

• Class: Chabazite series < Chabazite group < Zeolite family
• Class: Tecto-Aluminosilicate - Zeolitic water
• Soluble in: HCl (Decompose)
• Radioactive: Very weak

• Polymorph: Gmelinite-Ca (Hexagonal), Lévyne-Ca (Levyne-Ca) (Trigonal)

• Ca => K₂: Chabazite-K (Series)
• Ca => Na₂: Chabazite-Na (Series)
• Ca => Sr: Chabazite-Sr (Series)

• 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