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Törnebohmite-(Ce), Tornebohmite-(Ce)

Year of discovery: 1959 (Bastnäs mine, Sweden), 2022 (Japan)

Locality list: 2 localities of Törnebohmite-(Ce)

• Ce₂AlSi₂O₈(OH)
• (Ce,La)₂AlSi₂O₈(OH)
• Ce³⁺₂Al³⁺[OH|(SiO₄)₂]^9-

• Class: Nesosilicate - Hydroxide

• Ce => La: Törnebohmite-(La)

• Color: Grayish green
• Streak: White
• Luster: Waxy
• Diaphaneity: Transparent

• Cleavage: No
• Hardness: 4.5
• Density: 4.9

• System: Monoclinic
• Group: 2/m, P2₁/a
• Lattice: a=7.4, b=5.6, c=16.9, β=112.0