[ Top ] [ Japanese ]

Hambergite

Year of discovery: 1890 (Salbutangen, Norway), 2011 (Japan)

Locality list: A locality of hambergite

• Be₂BO₃(OH)
• [Be²⁺₂][OH|BO₃]^4-

• Class: Neso-Borate - Hydroxide
• Soluble in: HF

• Be => Mg: Pertsevite-(OH)

• Color: Colorless, Pale yellow
• Streak: White
• Luster: Vitreous
• Diaphaneity: Transparent-Translucent

• Cleavage: Perfect on {010} (1 plane), Good on {100} (1 plane)
• Hardness: 7.5
• Density: 2.4

• System: Orthorhombic
• Group: mmm, Pbca
• Lattice: a=9.7, b=12.2, c=4.4