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Lokkaite-(Y)

Year of discovery: 1969 (Pyörönmaa pegmatite, Finland), 1986 (Japan)

Locality list: 3 localities of lokkaite-(Y)

• CaY₄(CO₃)₇,9H₂O
• Ca(Y,Gd,Nd,Dy)₄(CO₃)₇,9H₂O
• [Ca²⁺][Y³⁺₄][(CO₃)₇]^14-,9H₂O

• Class: Carbonate - Hydrate

• Color: White
• Streak: White
• Luster: Vitreous
• Diaphaneity: Translucent

• Habit: Powder

• Density: 2.9

• System: Orthorhombic
• Group: mm2, Pb2m
• Lattice: a=39.4, b=6.1, c=9.3