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Uedaite-(Ce)

Year of discovery: 2007 (Japan as the first occurence in the World)

Locality list: 8 localities of edaite-(Ce)

• MnCeAl₂Fe(SiO₄)₃(OH)
• [Mn²⁺][Ce³⁺][Al³⁺₂][Fe²⁺][O|OH|SiO₄|Si₂O₇]^13-

• Class: Allanite group < Epidote supergroup
• Class: Sorosilicate - Nesosilicate - Oxide - Hydroxide
• Radioactive: Moderate

• Mn => Ca: Allanite-(Ce)

• Color: Black, Dark brown
• Streak: Gray
• Luster: Vitreous
• Diaphaneity: Transparent-Translucent

• Cleavage: Poor on {001} (1 plane)
• Hardness: 5-6

• System: Monoclinic
• Group: 2/m, P2₁/m
• Lattice: a=8.9, b=5.7, c=10.2, β=115.1

Etymology: Professor Tateo Ueda (1912-2000), Japanese mineralogist of Kyoto university.