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Niahite (Photo)

Year of discovery: 1983 (Niah Great Cave, Malaysia), 1984 (Japan)

Locality list: A locality of niahite

• (NH₄)MnPO₄,H₂O
• (NH₄)(Mn,Mg,Ca)PO₄,H₂O
• [NH₄]⁺[Mn²⁺][PO₄]^3-,H₂O

• Class: Ammonium - Phosphate - Hydrate

• Mn => Mg: Dittmarite

• Color: Pale brown, Colorless
• Streak: White
• Luster: Earthy
• Diaphaneity: Transparent

• Habit: Acicular

• Hardness: 1-2
• Density: 2.4

• System: Orthorhombic
• Group: mm2, Pmn2₁
• Lattice: a=5.7, b=8.8, c=4.9