Zinkenite, a lead antimony sulfide mineral, was found on the 900 level at Sterling Hill in the early 1990's. It is black, opaque, and occurs associated with quartz in 5-30-cm boudins within calcite, in a part of the mine which was host to
seligmannite and other sulfosalts. Criddle and Stanley (1993) reported it to contain Sb 43.6, Pb, 33.2, S 21.9, Cu 0.6, total = 99.3 wt. %, and they provided reflectance data.
Part of the material referred to by Palache (1941b) as "needles of an antimony compound" was found by [Dunn] to be zinkenite; see also berthierite. (Dunn, 1995)

 Location Found: Ogdensburg
 Year Discovered: 1826
 Formula: Pb9Sb22S42
 Essential Elements: Antimony, Lead, Sulfur
 All Elements in Formula: Antimony, Lead, Sulfur
 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   Zinkenite

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.556

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