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Dellaite

Year of discovery: 1965 (Kilchoan, UK), 2005 (Japan)

Locality list: A locality of dellaite

• Ca₆Si₃O₁₁(OH)₂
• Ca₆Si₃O₁₁(OH,Cl)₂
• [Ca²⁺₆][(OH)₂|SiO₄|Si₂O₇]^12-

• Class: Sorosilicate - Nesosilicate - Hydroxide

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

• Density: 2.9

• System: Triclinic
• Group: (-1), P(-1)
• Lattice: a=6.8, b=6.9, c=12.9, α=90.7, β=97.7, γ=98.2