between the total intensity under the infrared absorption band (integrated
absorbance) and mean wavenumber of the absorption band. This curve
demonstrates for crystalline minerals a relationship between band intensity
and wavenumber (which is related to the hydrogen bond distance) which has
been previously well-established for water in solutions and glasses.
From: Libowitzky E, Rossman GR (1997) An IR absorption
calibration for water in minerals. American Mineralogist.