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Olenite

Year of discovery: 1985 (Olenii Ridge, Russia), 1995 (Japan)

Locality list: A locality of olenite

• NaAl₉(BO₃)₃Si₆O₁₈O₃(OH)
• (Na,[])(Al,Li)₃Al₆(BO₃)₃Si₆O₁₈(O,OH)₄
• [Na⁺][Al³⁺₃][Al³⁺₆][OH|O₃|(BO₃)₃|(SiO₃)₆]^28-

• Class: Alkali-subgroup 5 < Alkali-tourmaline group < Tourmaline supergroup
• Class: Cyclosilicate (Single ring) - Neso-Borate - Oxide - Hydroxide
• Electrical: Piezoelectric, Pyroelectric

• Al₃O₃ => Li_1.5Al_1.5(OH)₃: Elbaite (Series)

• Al₃O₃ => Fe₃(OH)₃: Schorl

• Color: Pale pink, Blue
• Streak: White
• Luster: Vitreous
• Diaphaneity: Translucent

• Cleavage: No
• Hardness: 7
• Density: 3.0

• System: Trigonal
• Group: 3m, R3m
• Lattice: a=15.8, c=7.1