Eugenite

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Eugenite
Eugenite with Luanheite - Privolnoye - Sakha Republic - Russia.jpg
Eugenite with Luanheite
General
Categorysilver mineral
Formula Ag11(Hg2)2
Strunz classification 1.AD.15c
Crystal system Orthorhombic
Crystal class Dipyramidal (mmm)
H-M symbol: (2/m 2/m 2/m)
Space group Pbam (no. 55)
Unit cell a = 6.092  Å, b = 14.407 Å
c = 7.811 Å; Z = 4
V = 685.55
a:b:c = 0.423 : 1 : 0.542
Identification
References [1] [2]

Eugenite is a rare silver mineral. It crystallizes in the orthorhombic crystal system.

Contents

History

Its occurrence was first confirmed in the Sieroszowice copper mine, Lubin-Sieroszowice district, Poland. [1]

Etymology

The mineral is named in honor of Eugen Friedrich Stumpfl (27 November 1931, Munich, Germany - 12 July 2004, Innsbruck, Austria), professor of mineralogy, Mining Institute, Leoben (Austria), for his studies of noble metal compounds. [2]

Physical properties

It has a silver white color. And it is metallic and isometric. [3]

Occurrence

It is mostly found in cuprite and in low-grade copper sulfide ores in shale and carbonate rocks. [1]

References

  1. 1 2 3 "Eugenite Mineral Data". webmineral.com.
  2. 1 2 "Eugenite". www.mindat.org.
  3. ↑ Minerals, Dakota Matrix. "Eugenite mineral information and data". www.dakotamatrix.com.
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