Mineral Information and Data:

Anthonyite
Cu(OH)2 • 3H2O [CNMNC approved formula]

Named for Professor John W. Anthony (1920-1992), mineralogist, University of Arizona.

IMA status : Approved Species 1963 ()
CLASSIFICATION 
Dana
(8th edition) :
06.02.06.01  
  (06) Hydroxides and Oxides Containing Hydroxyl
  (06.02) where X++ (OH)2
  (06.02.06)
  
Nickel-Strunz
(10th edition) :
03.DA.40
  (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
Crystal Habit: Crystals prismatic, often curved, as crusts
  
Color: Lavender, violet
Diaphaneity: Semi-transparent
Hardness (Mohs): 2
Cleavage: 1; {100} good
Tenacity: Sectile, crystals bending easily on the {100}cleavage
  
Geologic Setting: In cavities and fractures in basalt, formed by the action of chlorine-bearing connate waters on copper (Centennial mine, Michigan, USA).
Mineral Association: Tremolite, quartz, epidote, monazite, copper, cuprite, paratacamite (Centennial mine, Michigan, USA)
  

<<< BACK TO MINERAL SEARCH