Mineral Information and Data:

Conichalcite
CaCuAsO4(OH) [CNMNC approved formula]

Named from the Greek for lime and copper, as both elements are essential to the composition.

IMA status : Valid species (Pre-IMA 1849) Grandfathered
CLASSIFICATION 
Dana
(8th edition) :
41.05.01.02  
  (41) Anhydrous Phosphates Containing Hydroxyl or Halogen
  (41.05) where (A B)2 (XO4) Zq
  (41.05.01) Adelite Group
  
Nickel-Strunz
(10th edition) :
08.BH.35
  (08) Phosphates, Arsenates, Vanadates
  (08.B) Phosphates, etc. with Additional Anions, without H2O
  (08.BH) With medium-sized and large cations, (OH,etc.):RO4 = 1:1
  
Crystal system: Orthorhombic System
Point group (H-M): 222 — disphenoidal
  
  
  

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