COL  ICSD Collection Code 31298
 DATE Recorded Dec 31, 1983; updated Jun 26, 1998
 NAME Nickel dichromium oxide
 MINR Nichromite high - synthetic
 MINR Spinel group
 FORM Ni Cr2 O4
      = Cr2 Ni O4
 TITL Neutron and X-Ray Powder Study of the Phase Transitions in the 
      Spinel Ni Cr2 O4
 REF  Zeitschrift fuer Kristallographie (149,1979-)
      ZEKRD 162 (1983) 8-9
 AUT  Armbruster T, Lager˙G˙A, Ihringer˙J, Rotella˙F˙J, Jorgensen˙J˙D
 CELL a=8.318 b=8.318 c=8.318 ŕ=90.0 á=90.0 ç=90.0
      V=575.5 Z=8
 SGR  F d -3 m Z    (227) - cubic
 CLAS m-3m  (Hermann-Mauguin) - Oh  (Schoenflies)
 PRS  cF56
 ANX  AB2X4
 PARM Atom__No OxStat  Wyck ---X--- ---Y--- ---Z---  -SOF-
      Ni     1  2.000    8a  1/8     1/8     1/8
      Cr     1  3.000   16d  1/2     1/2     1/2
      O      1 -2.000   32e  0.26158 0.26158 0.26158
 WYCK e d a
 ITF  Ni  1   B=0.64(2)
 ITF  Cr  1   B=0.31(2)
 ITF  O   1   B=0.64(2)
 REM  NDP (neutron diffraction from a powder)
 REM  TEM 325
 REM  M R(Rietveld)=0.102, cubic above 320 K
 RVAL 0.028