Mineral Information and Data:

Cannonite
Bi2O(SO4)(OH)2 [CNMNC approved formula]

Named for B.B. Cannon, who first recognized the mineral.

IMA status : Approved Species 1992 ()
CLASSIFICATION 
Dana
(8th edition) :
30.02.09.01  
  (30) Anhydrous Sulfates Containing Hydroxyl or Halogen
  (30.02) where (A B)2 XO4 Zq
  (30.02.09)
  
Nickel-Strunz
(10th edition) :
07.BD.35
  (07) Sulfates (selenates, tellurates, chromates, molybdates, wolframates)
  (07.B) Sulfates (selenates, etc.) with Additional Anions, without H2O
  (07.BD) With only large cations
  
Crystal system: Monoclinic System
Point group (H-M): 2/m — prismatic
  
  
  

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