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Wadalite

Year of discovery: 1983 (Japan as the first occurence in the World)

Locality list: A locality of wadalite

• Ca₆Al₄Si₃O₁₆Cl₃
• (Ca,Mg)₆(Al,Fe)₄(Si,Al)₃O₁₆Cl₃
• [Ca²⁺₆][Al³⁺₄][Cl₃|O₄|(SiO₄)₃]

• Class: Wadalite group < Mayenite supergroup
• Class: Nesosilicate - Oxide - Chloride

• Color: Yellow, Dark gray
• Streak: Colorless
• Luster: Vitreous
• Diaphaneity: Transparent-Translucent

• Habit: Tetrahedral

• Density: 3.1

• System: Cubic
• Group: (-4)3m, I(-4)3d
• Lattice: a=12.0

Etymology: Tsunashiro Wada (1856-1920), the first Japanese mineralogist who learned modern mineralogy from German geologist Heinrich Edmund Naumann (1854-1927). He is the first director of the Geological Survey of Japan. Naumann is the etymology of an ancient Asian elephant, Elephas (Palaeoloxodon) naumanni.