Niahite, an ammonium manganese phosphate hydrate mineral, was identified from Sterling Hill, where it occurs associated with newberyite, sussexite, and severely altered pyrochroite. It was verified using X-ray methods and a microprobe wavelength-dispersive scan which showed Mn and P as the major elements. Niahite occurs as 0.3 mm pearly crystals, isolated, and whitish-pink. It has not been found at Franklin. (Dunn, 1995)

 Location Found: Ogdensburg
 Formula: (NH4)(Mn2+,Mg)(PO4) · H2O
 Essential Elements: Hydrogen, Manganese, Nitrogen, Oxygen, Phosphorus
 All Elements in Formula: Hydrogen, Magnesium, Manganese, Nitrogen, Oxygen, Phosphorus
 IMA Status: Approved 1977
 To find out more about this mineral at minDat's website, follow this link   Niahite

Dunn, Pete J. (1995). Franklin and Sterling Hill New Jersey: the world's most magnificent mineral deposits. Franklin, NJ.: The Franklin-Ogdensburg Mineralogical Society. p.674

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