Kobellite

Kobellite is a gray, fibrous, metallic mineral with the chemical formula Pb
22
Cu
4
(Bi,Sb)
30
S
69
. It is also a sulfide mineral consisting of antimony, bismuth, and lead. It is a member of the izoklakeite - berryite series with silver and iron substituting in the copper site and a varying ratio of bismuth, antimony, and lead. It crystallizes with monoclinic pyramidal crystals. The mineral can be found in ores and deposits of Hvena, Sweden; Ouray, Colorado; and Wake County, North Carolina, US. The mineral was named after Wolfgang Franz von Kobell (1803–1882), a German mineralogist.

Kobellite
Kobellite-540285.jpg
General
CategorySulfide minerals
Formula
(repeating unit)
Pb
22
Cu
4
(Bi,Sb)
30
S
69
Strunz classification2.HB.10a
Crystal systemOrthorhombic
Crystal classDipyramidal (mmm)
H-M symbol: (2/m 2/m 2/m)
Space groupPnnm (no. 58)
Identification
References[1][2][3][4]

See alsoEdit

ReferencesEdit

  1. ^ [1]
  2. ^ Mindat.org
  3. ^ Webmineral.com
  4. ^ Miehe, G. (June 1971). "Crystal Structure of Kobellite". Nature Physical Science. 231 (23): 133–134. doi:10.1038/physci231133a0.