Glossary Term
By Dr. Rashid Karimov Gemological Spectroscopy Editor
Fourier-transform infrared spectroscopy. A non-destructive technique that identifies a mineral’s molecular fingerprint via its mid-infrared absorption bands. For diaspore, FTIR confirms the species via characteristic O-H stretching modes, distinguishing it from chemically similar but structurally different aluminum hydroxides like böhmite and gibbsite.
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