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Hexahydroborite

Year of discovery: 1976 (Titovskoe B deposit, Russia), 1999 (Japan)

Locality list: A locality of hexahydroborite

• CaB₂(OH)₈,2H₂O
• [Ca²⁺][(H₄BO₄)₂]^2-,2H₂O

• Class: Neso-Borate - Hydrate
• Soluble in: Water (Slowly), HCl

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

• Cleavage: No
• Hardness: 2.5
• Density: 1.8

• System: Monoclinic
• Group: 2/m, C2/c
• Lattice: a=8.0, b=6.6, c=8.0, β=104.2