Mineral Information and Data:

Karlite
(Mg,Alx)7(BO3)3(OH)4Cl1-x [CNMNC approved formula]

Named for F. Karl, German professor at the University of Kiel, Austria.

IMA status : Approved Species 1981 ()
CLASSIFICATION 
Dana
(8th edition) :
25.08.04.01  
  (25) Anhydrous Borates Containing Hydroxyl or Halogen
  (25.08)
  (25.08.04)
  
Nickel-Strunz
(10th edition) :
06.AB.25
  (06) Borates
  (06.A) Monoborates
  (06.AB) BO3, without additional anions; 1(D) + OH, etc.
  
Crystal system: Orthorhombic System
Point group (H-M): 222 — disphenoidal
  
  
  

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