For those new to Crystallography
Why bother looking into freely available crystallographic software?
Crystallography can help answer questions that may not seem very crystallographic at the time.
In the following screen images, help determine, using diffraction techniques, whether there is Oxygen in the Earth’s outer core. (unit cell volumes to obtain equations of state - EOS)
“O2 volumes at high pressure from KClO4 decomposition: D" as a siderophile element pump instead of a lid on the core.” D. Walker, S.M. Clark, L.M.D. Cranswick, M.C. Johnson and R.L. Jones, (2002), Geochemistry, Geophysics, Geosystems (G^3), in press.