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Eulytine

Year of discovery: 1827 (Schneeberg district, Germany), 1982 (Japan)

Locality list: 7 localities of eulytine

• Bi₄(SiO₄)₃
• [Bi³⁺₄][(SiO₄)₃]^12-

• Class: Nesosilicate
• Soluble in: HCl (Gel residue)

• Color: Brown, Green
• Streak: White
• Luster: Adamantine
• Diaphaneity: Transparent-Translucent

• Habit: Tetrahedral
• Aggregate: Spherical

• Cleavage: Perfect on {110} (3 planes)
• Hardness: 4.5
• Density: 6.6

• System: Cubic
• Group: (-4)3m, I(-4)3d
• Lattice: a=10.3

Synonym: Eulytite