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Leucophosphite

Year of discovery: 1932 (Ninghanboun Hills, Australia), 2002 (Japan)

Locality list: 3 localities of leucophosphite

• KFe₂(PO₄)₂(OH),2H₂O
• [K⁺][Fe³⁺₂][OH|(PO₄)₂]^7-,2H₂O

• Class: Leucophosphite group
• Class: Phosphate - Hydroxide - Hydrate
• Radioactive: Very weak

• K => NH₄: Spheniscidite

• Fe => Al: Tinsleyite

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

• Cleavage: Perfect on {100} (1 plane)
• Hardness: 3.5
• Density: 2.9

• System: Monoclinic
• Group: 2/m, P2₁/n
• Lattice: a=9.8, b=9.7, c=9.7, β=102.4