Mineral Information and Data:

Douglasite
K2Fe2+Cl4 • 2H2O [CNMNC approved formula]

Named after its discovery locality: at Douglasschall, northwest of Stassfurt, Germany.

IMA status : Valid species (Pre-IMA 1879) Grandfathered
CLASSIFICATION 
Dana
(8th edition) :
11.03.01.01  
  (11) Halide Complexes; Alumino-fluorides
  (11.03) where (A)m B (X)4 · x(H2O)
  (11.03.01)
  
Nickel-Strunz
(10th edition) :
03.CJ.20
  (03) Halides
  (03.C) Complex Halides
  (03.CJ) With MX6 complexes; M = Fe, Mn, Cu
  
Crystal system:  
Point group (H-M):
  
  
  
Other Properties: H2O Soluble.

<<< BACK TO MINERAL SEARCH