GEMSTONE MINING OF PRECIOUS GEMSTONE

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MICROSCOPIC ANALYSIS

The best way to examine a gemstone is by using a microscope.

The microscope provides better magnification, illumination, and mechanical stability. It consists of a set of eyepieces, viewing tube, objectives, coarse and fine adjustments, a stage with built-in illumination (i.e Reflected light / Darkfield illumination). It is an essential tool for the gemologist especially in the identification of synthetics.

GEMOLOGICAL APPLICATIONS:











  1. Detection of synthetics and imitations.
  2. Study inclusions to assist in determining the identity or place of origin.
  3. Detect double refraction (i.e Zircon or Peridot)
  4. Detect composite or assembled stones.
  5. Diamond or Colored Stone clarity grading.
  6. Proportion grading for both Diamonds and Colored Stones.
  7. Becke line method of R.I. determination.
  8. The direct method of R.I. determination when fitted with a calibrated scale.
  9. Study interference figures to determine whether it is uniaxial or biaxial when fitted with a polarizer/analyzer.

 

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