Notes about origin of files:

nist_atom.dat: included from NIST > Physical Reference Data > Atomic Weights; http://www.nist.gov/pml/data/comp.cfm

f[01]*.dat.xz: database files from XOP project; http://ftp.esrf.eu/pub/scisoft/xop2.3/

*.cif .... structure files from the American Mineralogist database http://rruff.geo.arizona.edu/AMS/amcsd.php
