cell   6.833   6.833   9.122    90   90   90
Ag+     47    0.0    0.25    0.125   1  1.68
Ag2+    47    0.0    0.25    0.625   1  0.58
O      8    0.0798  0.2630  0.3378    1  0.66
rgnr   88  2 
rem:  Formula  Ag O.  Yvon c.s. J.Sol St. Chem 65, 225-230 (1986)
rem2: with origin at center of symmetry, other than in litt.
THESE DATA GIVE THE CORRECT OUTPUT FOR THIS STRUCTURE!!