Perroudite


Composition: Hg5Ag4S5(Cl,I,Br)4
Crystal System : Orthorhombic
Colours: Bright red
Lustre : Adamantine, vitreous
Hardness (H) : 2
Specific Gravity (S.G) : 6.92
References: Keller et al. (2005)

Distribution

Extremely rare. First oxidation zone (?)

Occurrence

  • Supergene
  • 1st Oxidation Zone

Paragenetic and General Notes

As very small red crystals with arsentsumebite and azurite (Keller et al., 2005). The assemblage indicates that this is probably first oxidation zone material.