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Ikaite

Year of discovery: 1963 (Ikka Bund, Greenland), 1994 (Japan)

Locality list: A locality of ikaite

• CaCO₃,6H₂O
• [Ca²⁺][CO₃]^2-,6H₂O

• Class: Carbonate - Hydrate
• Dehydrate to calcite above 8 degree.
• Substitution pseudomorph: Replaced by Calcite. (Glendonite)

• 6H₂O => 5H₂O: Monohydrocalcite
• 6H₂O => []: Calcite, Aragonite, Vaterite

• Color: White
• Streak: White
• Luster: Earthy
• Diaphaneity: Opaque

• Habit: Elongated bipyramidal

• Density: 1.8

• System: Monoclinic
• Group: 2/m, C2/c
• Lattice: a=8.9, b=8.2, c=11.0, β=110.2