COL  ICSD Collection Code 75629
 DATE Recorded Apr 22, 1996; updated Jan 19, 1999
 NAME Zinc dialuminium tetraoxide
 MINR Gahnite - synthetic, annealed at 1000 C for 14 h
 MINR Spinel group
 FORM (Zn0.984 Al0.016) (Al1.984 Zn0.016) O4
      = Al2 O4 Zn
 TITL Crystal structures and cation distributions in simple spinels from 
      powder XRD structural refinements: Mg Cr2 O4, Zn Cr2 O4, Fe3 O4 
      and the temperature dependence of the cation distributionin Zn Al2 
      O4
 REF  Physics and Chemistry of Minerals (Germany)
      PCMID 20 (1994) 541-555
 AUT  O'Neill H St C, DollaseÿWÿA
 CELL a=8.087 b=8.087 c=8.087 à=90.0 á=90.0 ç=90.0
      V=528.8 D=4.62 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-
      Zn     1  2.000    8a  1/8     1/8     1/8       0.984(3)
      Al     1  3.000    8a  1/8     1/8     1/8       0.016(3)
      Zn     2  2.000   16d  1/2     1/2     1/2       0.008(2)
      Al     2  3.000   16d  1/2     1/2     1/2       0.992(2)
      O      1 -2.000   32e  0.2644  0.2644  0.2644
 WYCK e d a
 ITF  Zn  1   B=0.305(16)
 ITF  Al  1   B=0.305(16)
 ITF  Zn  2   B=0.230(28)
 ITF  Al  2   B=0.230(28)
 ITF  O   1   B=0.334(45)
 REM  XDP (X-ray diffraction from a powder)
 REM  RVP
 REM  M PDF 5-669, data from table 8
 RVAL 0.029