Originally named manganpyrosmalite by By Clifford Frondel and Lawson H. Bauer for its manganese-dominant composition relative to the original pyrosmalite.

 Location Found: Ogdensburg (Type Locality)
 Year Discovered: 1953
 Formula: (Mn,Fe)8Si6O15(OH,Cl)10
 Essential Elements: Hydrogen, Manganese, Oxygen, Silicon
 All Elements in Formula: Chlorine, Hydrogen, Iron, Manganese, Oxygen, Silicon
 IMA Status: Valid - first described prior to 1959 (pre-IMA) - "Grandfathered"
 To find out more about this mineral at minDat's website, follow this link   Pyrosmalite-(Mn)

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.478. 'Manganpyrosmalite'

Frondel, Clifford (1972). The minerals of Franklin and Sterling Hill, a checklist. NY.: John Willey & Sons. p.67

The Picking Table References
 PT Issue and PageDescription / Comment
View IssueV. 31, No. 1 - Spring 1990, pg. 6Manganpyrosmalite Crystals From Ogdensburg, New Jersey (Originally named By Clifford Frondel and Lawson H. Bauer, renamed Pyrosmalite-(Mn))
View IssueV. 18, No. 1 - March 1977, pg. 10The Post Palache Minerals - Manganpyrosmalite now Pyrosmalite-(Mn)
View IssueV. 9, No. 1 - February 1968, pg. 15The Exclusive Minerals of Franklin/Ogdensburg, N.J. (as of January 1968) by Frank Z. Edwards - Manganpyrosmalite (Short Note)

Pyrosmalite-(Mn) crystals on calcite, Sterling Hill Mine, Ogdensburg, NJ
Pyrosmalite-(Mn) crystals (pinkish brown) on calcite (white) from the Sterling Hill Mine, Ogdensburg, NJ. Field of view 2 mm. From the collection of, and photo by DW.

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