Bementite





 Location Found: Franklin (Type Locality) and Ogdensburg
     
 
 Year Discovered: 1887
     
 Formula: Mn7Si6O15(OH)8
 Essential Elements: Hydrogen, Manganese, Oxygen, Silicon
 All Elements in Formula: Hydrogen, Manganese, Oxygen, Silicon
     
 IMA Status: Approved
     
     
 To find out more about this mineral at minDat's website, follow this link   Bementite

     
 References:
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.488

Frondel, Clifford (1972). The minerals of Franklin and Sterling Hill, a checklist. NY.: John Willey & Sons. p.45


The Picking Table References
 PT Issue and PageDescription / Comment
View IssueV. 32, No. 1 - Spring 1991, pg. 14Mineral Notes, Research Reports, Bementite
View IssueV. 21, No. 2 - September 1980, pg. 9Mineral Notes Research Reports, Bementite
View IssueV. 5, No. 2 - August 1964, pg. 13Bementite
     
Images

     
Bementite rare manganese silicate hydroxide, Franklin
Bementite is a rare manganese silicate hydroxide, the type locality is the Franklin Mine, Franklin, New Jersey. Non-fluorescent. Photo by JVF.


Bementite on matrix with calcite and minor franklinite crystals from the Trotter Mine, Franklin, NJ
Bementite (golden tan) on matrix (tan) with calcite (white) and minor franklinite crystals (black) from the Trotter Mine, Franklin, NJ. 2 1/2" X 2 1/8". From the collection of, and photo by Robert A. Boymistruk.







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