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Lévyne-Na, Levyne-Na

Year of discovery: 1972 (Japan as the first occurence in the World)

Locality list: 3 localities of lévyne-Na

• Na₂Al₂Si₄O₁₂,6H₂O
• (Na₂,Ca,K₂)Al₂Si₄O₁₂,6H₂O
• [Na₂⁺][(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-Na (Trigonal), Gmelinite-Na (Hexagonal)

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

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

• 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=22.7