Here is some information about the crystal structure of chromium.

Space group:	Im-3m (Space group number: 229)
Structure:	bcc (body-centred cubic)
Cell parameters:	a /pm	b /pm	c /pm	α / °	β / °	γ / °
	291	291	291	90.000	90.000	90.000

If you have a browser plug-in or other program which can read pdb (protein database format) file such as the Chime plug-in or the Chem3D Net plug-in then you can view the element structure interactively. For help in viewing the interactive images linked to from this this page, try this link.

If you have a virtual reality (VR) plug-in such as Cortona (make sure you get the VRML1 converter as well) or CosmoPlayer [Mac VRML applications and other VRML applications] then you can view interactive 3D images.

The "large image" link will give you a full window display of the interactive file and you will have to use your browser "back" button to get back to this page. The "small image" link will give you a smaller display of the file embedded within this page. The images were constructed using the CrystalMaker program.

References

R. G. Ross and W. Hume-Rothery, J. Less-Common Metals, 1963, 5, 259.