Mineral Information and Data:

Berryite
Cu3Ag2Pb3Bi7S16 [CNMNC approved formula]

Named for Professor Leonard Gascoigne Berry (1914-1982), mineralogist, Queen's University, Toronto, Canada, who obtained the first X-ray powder pattern of the mineral.

IMA status : Approved Species 1966 ()
CLASSIFICATION 
Dana
(8th edition) :
03.06.15.01  
  (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
  (03.06.15)
  
Nickel-Strunz
(10th edition) :
02.HB.20d
  (02) Sulfides
  (02.H) Sulfosalts of SnS Archetype
  (02.HB) With Cu, Ag, Fe, Sn and Pb
  
Crystal system: Monoclinic System
Point group (H-M): 2/m — prismatic
  
  
  

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