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Oyelite

Year of discovery: 1980 (Japan as the first occurence in the World)

Locality list: 2 localities of oyelite

• Ca₅BSi₄O₁₃(OH)₃,4H₂O
• [Ca²⁺₅][HSi₂O₇|H₂BSi₂O₉]^10-,4H₂O

• Class: Ino-Borosilicate - Sorosilicate - Hydrate

• Color: White
• Streak: White
• Luster: Vitreous
• Diaphaneity: Translucent

• Habit: Acicular
• Aggregate: Parallel

• Hardness: 5
• Density: 2.6

• System: Orthorhombic
• Group: P(-1)
• Lattice: a=11.3, b=7.3, c=20.5

Etymology: Professor Jiro Oye (1900-1968), Japanese mineralogist of Okayama University.