Mineral Information and Data:

Clinoatacamite
Cu2(OH)3Cl [CNMNC approved formula]

Named for the relationship to atacamite and paratacamite. Atacamite is named after the Atacam desert province in northern Chile.

IMA status : Approved Species 1996 ()
CLASSIFICATION 
Dana
(8th edition) :
10.01.02.02  
  (10) Oxyhalides and Hydroxyhalides
  (10.01) where (A)2 (O,OH)3 Xq
  (10.01.02) Paratacamite Group
  
Nickel-Strunz
(10th edition) :
03.DA.10b
  (03) Halides
  (03.D) Oxyhalides, Hydroxyhalides and Related Double Halides
  (03.DA) With Cu, etc., without Pb
  
Crystal system: Monoclinic System
Point group (H-M): 2/m — prismatic
  
  
  

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