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Vaterite [abbr. Vtr ]

Year of discovery: 1911 (World), 1999 (Japan)

Locality list: A locality of vaterite

• CaCO₃
• [Ca²⁺][CO₃]^2-

• Class: Vaterite group
• Class: Carbonate
• Phase transition: Transit to Calcite by heating above 440 dgree or in boiling water.
• Phase transition: Transit to Aragonite by heating above 440 dgree.

• Polymorph: Calcite (Trigonal), Aragonite (Orthorhombic)

• Ca => Mn: Rhodochrosite
• Ca => Mg: Magnesite
• Ca => Fe: Siderite
• Ca => Cd: Otavite
• Ca => Zn: Smithsonite
• Ca => Ni: Gaspéite (Gaspeite)
• Ca => Co: Spherocobaltite
• Ca => Ba: Witherite
• Ca => Sr: Strontianite
• Ca => Pb: Cerussite
• Ca => Na₂: Gregoryite

• Ca₂ => CaBa: Barytocalcite, Alstonite, Paralstonite
• Ca₂ => CaMn: Kutnohorite
• Ca₂ => CaFe: Ankerite

• [] => 6H₂O: Ikaite
• [] => H₂O: Monohydrocalcite

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

• Cleavage: Good
• Hardness: 3
• Density: 2.6

• System: Hexagonal
• Group: 6/mmm, P6₃/mmc
• Lattice: a=4.1, c=8.5