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Zincsilite

Year of discovery: 1960 (Batystau deposit, Kazakhstan), 1996 (Japan)

Locality list: A locality of zincsilite

• Zn₃Si₄O₁₀(OH)₂,4H₂O
• [Zn²⁺₃][(OH)₂|(Si₂O₅)₂]^6-,4H₂O

• Class: Trioctahedral < Smectite group < Mica supergroup
• Class: Phyllosilicate - Hydroxide - Hydrate
• Substitution pseudomorph: Replace Diopside.

• Si => NaAl: Sauconite (Series)

• Color: Pale blue
• Streak: White
• Luster: Pearly
• Diaphaneity: Translucent

• Habit: Micaceous, Massive

• Cleavage: Perfect on {001} (1 planes)
• Hardness: 1.5-2
• Density: 2.7

• System: Monoclinic
• Group: 2/m, C2/m
• Lattice: a=5.1, b=9.2, c=15.3, β=90.0

• Coexist: Chrysocolla, Fluorite

Etymology: Chemical composition