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Sibirskite

Year of discovery: 1962 (Yuliya Svintsoviya deposit, Russia), 1997 (Japan)

Locality list: A locality of sibirskite

• CaHBO₃
• Ca₂B₂O₄(OH)₂
• [Ca²⁺₂][OH|HB₂O₅]^4-

• Class: Soro-Borate - Hydroxide

• Polymorph: Parasibirskite (Monoclinic)

• Ca => Mn: Sussexite
• Ca => Mg: Szaibélyite (Szaibelyite)

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

• System: Monoclinic
• Group: 2/m, P2₁/a
• Lattice: a=8.6, b=9.5, c=3.6, β=119.2