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Switzerite

Year of discovery: 1967 (Foote mine, USA), 2003 (Japan)

Locality list: A locality of switzerite

• Mn₃(PO₄)₂,7H₂O
• (Mn,Fe)₃(PO₄)₂,7H₂O
• [Mn²⁺₃][(PO₄)₂]^6-,7H₂O

• Class: Ludlamite group
• Class: Phosphate - Hydrate
• Dehydrate to Metaswitzerite rapidly in the air.

• 7H₂O => 4H₂O: Metaswitzerite

• Color: Pale pink, Brown
• Streak: White
• Luster: Pearly
• Diaphaneity: Transparent-Translucent

• Cleavage: Perfect on {001} (1 plane)
• Hardness: 2
• Density: 2.5

• System: Monoclinic
• Group: 2/m, P2₁/a
• Lattice: a=8.5, b=13.2, c=11.9, β=110.1