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Lévyne-Ca, Levyne-Ca

Year of discovery: 1825 (Dalsnipa, Denmark), 1976 (Japan)

Locality list: 5 localities of lévyne-Ca

• CaAl₂Si₄O₁₂,6H₂O
• (Ca,Na₂,K₂)Al₂Si₄O₁₂,6H₂O
• [Ca²⁺][(AlSi₂O₆)₂]^2-,6H₂O

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

• Polymorph: Chabazite-Ca (Triclinic), Gmelinite-Ca (Hexagonal)

• Ca => Na₂: Lévyne-Na (Levyne-Na) (Series)

• Color: Colorless, White
• Streak: White
• Luster: Vitreous
• Diaphaneity: Transparent

• Habit: Hexagonal thin platy

• Cleavage: Perfect on {1011} (3 planes)
• Hardness: 4-4.5
• Density: 2.1

• System: Trigonal
• Group: (-3)m, R(-3)m
• Lattice: a=13.4, c=22.8