Mineral Information and Data:

Heyrovskyite
Pb6Bi2S9 [CNMNC approved formula]

Named after the Czech chemist, J. Heyrovsky (1890-1967).

IMA status : Approved Species 1971 ()
CLASSIFICATION 
Dana
(8th edition) :
03.03.03.01  
  (03) Sulfides - Sulfosalts
  (03.03) where 3 < z/y < 4 - (A+)i (A++)j [By Cz], A=metals, B=semi-metals, C=non-metals
  (03.03.03)
  
Nickel-Strunz
(10th edition) :
02.JB.40b
  (02) Sulfides
  (02.J) Sulfosalts of PbS Archetype
  (02.JB) Galena derivatives, with Pb
  
Crystal system: Orthorhombic System
Point group (H-M): mmm (or 2/m 2/m 2/m) — dipyramidal
  
  
  

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