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Allanite-(Nd)

Year of discovery: 2011 (Åskagen quarry, Sweden), 1999 (Japan)

Locality list: A locality of allanite-(Nd)

• CaNdAl₂FeSi₃O₁₂(OH)
• [Ca²⁺Nd³⁺][Al³⁺₂Fe²⁺][OH|O|SiO₄|Si₂O₇]^13-

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

• Nd => Ce: Allanite-(Ce)
• Nd => Y: Allanite-(Y)
• Nd => La: Allanite-(La)
• Nd => Ca: Epidote
• Nd => Pb: Epidote-(Pb)
• Nd => Sr: Epidote-(Sr)

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

• System: Monoclinic
• Group: 2/m, P2₁/m
• Lattice: a=8.9, b=5.7, c=10.1, β=115.2