[ Top ] [ Japanese ]

Akasakaite-(La)

Year of discovery: 2025 (Japan as the first occurence in the World)

Locality list:

• CaLaAl₂Mn²⁺Si₃O₁₂(OH)
• [Ca²⁺La³⁺][Al³⁺₂Mn²⁺][OH|O|SiO₄|Si₂O₇]^13-

• Class: Akasakaite series < Allanite group < Epidote supergroup
• Class: Sorosilicate - Nesosilicate - Oxide - Hydroxide
• Radioactive: Weak

• La => Ce: Akasakaite-(Ce)

• Al => V: Vanadoakasakaite-(La)
• Al => Fe³⁺: Ferriakasakaite-(La)
• Al => Mn³⁺: Manganiakasakaite-(La)

• Mn => Fe²⁺: Allanite-(La)
• Mn => Mg: Dissakisite-(La)

• Color: Black-Brown

• System: Monoclinic
• Group: 2/m, P2₁/m
• Lattice: a=8.9, b=5.7, c=10.1, β=113.7