Location Found: Ogdensburg
 Formula: K(Mn74+Mn3+)O16
 Essential Elements: Manganese, Oxygen, Potassium
 All Elements in Formula: Manganese, Oxygen, Potassium
 IMA Status: Approved 1982
 To find out more about this mineral at minDat's website, follow this link   Cryptomelane

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.591

Frondel, Clifford (1972). The minerals of Franklin and Sterling Hill, a checklist. NY.: John Willey & Sons. p.52

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