Jadeite itself is an anhydrous mineral. However, the secondary action it undergoes, the leaching of limonite will change the appearance of jadeite, can the infrared spectrum be used to indicate its water content? If so, which wavelength data can be used to characterize it?
Thanks for your answers
I'm not expert of this materials, but if you have the chance to acquire more than one spectra before and after a specific treatment (e.g. limonite leaching), you can check the region between 1700-1600 cm-1 (around 1630 cm-1) which is related to the bending mode of water (check the presence of some cut-off in that region) and run a mathematical difference of spectra. If the peak/band around 1630 cm-1 increses than water content is increasing. You can also check the OH region beyond 3000 cm-1. To be sure about the presence of water you could perform some experiment using D2O but it would be more complicated).
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