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Metavariscite

Year of discovery: 1927 (Edison Bird mine, USA), 2006 (Japan)

Locality list: A locality of metavariscite

• AlPO₄,2H₂O
• [Al³⁺][PO₄]^3-,2H₂O

• Class: Phosphate - Hydrate

• Polymorph: Variscite (Orthorhombic)

• Al => Fe: Strengite, Phosphosiderite
• Al => Sc: Kolbeckite

• PO₄ => AsO₄: Mansfieldite

• 2H₂O => []: Berlinite

• Color: Pale green
• Streak: White
• Luster: Vitreous
• Diaphaneity: Transparent-Translucent

• Cleavage: Distinct on {010} (1 plane)
• Hardness: 3.5
• Density: 2.5

• System: Monoclinic, Pseudo-Orthorhombic
• Group: 2/m, P2₁/n
• Lattice: a=5.2, b=9.5, c=8.5, β=90.4