Gemological tool
FTIR Spectrometer
Laboratory infrared fingerprinting for polymers, fillers, coatings, and some treatments
Typical price$ 8000 - 60000
PortabilityLow portability
Field noteLab instrument, usually not field portable
How to use it
- Clean the sample surface and confirm the test area is safe to contact or scan
- Choose transmission, reflection, or ATR mode depending on the material and mounting
- Collect a background spectrum before measuring the gemstone or suspect zone
- Measure the stone, filler, coating, or polymer-rich area using consistent pressure and alignment
- Compare absorption peaks with reference spectra for jade polymer, oils, resins, wax, amber, pearls, and coatings
- Document the spectrum and note whether the result supports treatment, natural material, or further testing