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*ZVALUE is used to test for a specified Z-value, ie. number of formula units per unit cell.
The Z value is the number of formula units per unit cell and is related to the crystal density D by
D = Z x FW x 1.660/V
Select *ZVALUE from the NUMERIC sub-menu and respond to the standard numeric prompts.
Basic QUEST Procedure
T1 *ZVAL .EQ. 32.0
This will register hits for all entries having Z=32
Note that the value of Z in a *ZVAL test must be expressed as a floating-point number.
*ZPRIME, *DENC, *DENM, *DENX
Volume 2 Chapter 8 Quest Sub-menu CONTENTS.