Huebnerite (hübnerite), a manganese tungstate mineral, was identified from Franklin by Dunn (1979c); it has not been reported from Sterling Hill. It occurred as 1 mm euhedral crystals, mostly equant, but some are elongate in habit. This huebnerite is dark red with vitreous to submetallic luster. The crystals are associated with secondary willemite and franklinite crystals and have the composition MnO 24.19, FeO 0.24, WO3 77.16, ZnO trace, total = 101.59 wt. %. (Dunn, 1995)

 Location Found: Franklin
 Formula: MnWO4
 Essential Elements: Manganese, Oxygen, Tungsten
 All Elements in Formula: Manganese, Oxygen, Tungsten
 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   Hübnerite

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.644. 'Huebnerite'

The Picking Table References
 PT Issue and PageDescription / Comment
View IssueV. 20, No. 2 - September 1979, pg. 8Contributions to the Mineralogy of Franklin and Sterling Hill New Jersey, Huebnerite now Hübnerite (small article)
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