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Florencite-(Ce)

Year of discovery: 1899 (Mata dos Crioulos, Brazil), 1991 (Japan)

Locality list: 6 localities of florencite-(Ce)

• CeAl₃(PO₄)₂(OH)₆
• [Ce³⁺][Al³⁺₃][(OH)₆|(PO₄)₂]^12-

• Class: Plumbogummite group < Alunite supergroup
• Class: Phosphate - Hydroxide
• Soluble in: HCl
• Radioactive: Weak

• Ce => La: Florencite-(La)
• Ce => Nd: Florencite-(Nd)
• Ce => Bi: Waylandite
• Ce => Th: Eylettersite

• Color: Colorless, Gray, Pink
• Streak: White
• Luster: Resinous
• Diaphaneity: Transparent-Translucent

• Cleavage: Good on {001} (1 planes)
• Hardness: 5-6
• Density: 3.6

• System: Trigonal
• Group: (-3)m, R(-3)m
• Lattice: a=7.0, c=16.4