Mineral Information and Data:

Vurroite
Pb20Sn2(Bi,As)22S54Cl6 [CNMNC approved formula]

Named for Filippo Vurro, Professor of Mineralogy at the University of Bari and specialist in the mineralogy and geochemistry of modern volcanic deposits.

IMA status : Approved Species 2003 ()
CLASSIFICATION 
Dana
(8th edition) :
03.06.23.01  
  (03) Sulfides - Sulfosalts
  (03.06) where 2 < z/y < 2.49 - (A+)i (A++)j [By Cz], A=metals, B=semi-metals, C=non-metals
  (03.06.23)
  
Nickel-Strunz
(10th edition) :
02.JB.65
  (02) Sulfides
  (02.J) Sulfosalts of PbS Archetype
  (02.JB) Galena derivatives, with Pb
  
Crystal system: Monoclinic System
Point group (H-M): 2/m — prismatic
  
  
  

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