Mineral Information and Data:

Coquandite
Sb3+6O8SO4 • H2O [CNMNC approved formula]

Named for Henri-Jean-Baptiste Coquand (1813-1881), Professor of Geology and Mineralogy, University of Marseilles, Marseilles, France.

IMA status : Approved Species 1992 ()
CLASSIFICATION 
Dana
(8th edition) :
30.01.18.01  
  (30) Anhydrous Sulfates Containing Hydroxyl or Halogen
  (30.01) where (A B)m (XO4)p Zq where m:p>2:1
  (30.01.18)
  
Nickel-Strunz
(10th edition) :
07.DE.35
  (07) Sulfates (selenates, tellurates, chromates, molybdates, wolframates)
  (07.D) Sulfates (selenates, etc.) with additional anions, with H2O
  (07.DE) With only medium-sized cations; unclassified
  
Crystal system: Triclinic System
Point group (H-M): 1 — pinacoidal
  
  
  

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