Gemological Spectroscope
This pocket gemological spectroscope in its lightweight yet durable leather case is perfect for when you are on the road and need to make quick purchasing decisions.  Bring it with you on buying trips, vacations, or to trade shows.  This instrument is so portable, you can easily fit it in your pocket or purse for everyday use. Use this instrument as a confirmation by viewing the absorption spectra of the stone you are examining. Using a white light source and having some knowledge of known absorption spectra will enable you to eliminate possibilities.