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Portable Polariscope with torch and carry case included

AUD $65.00

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1 Units in Stock

  • Description
  • Reviews

The polariscope is used to test gemstones (cut or rough) for single or double refraction. Two polarising filters allows the observation of the structure and optical properties of precious stones or minerals.  

Specifications :

  • Handheld Polariscope - Length 80mm, Diameter 28mm
  • Material: Optics glass, Metal
  • Handheld Flashlight (length 156mm) requiring two AA batteries (included)
  • Carry Pouch for polariscope and flashlight

How to use :

  1. Put the flashlight into the opening under the polariscope
  2. Tighten the screw to hold the flashlight secure
  3. Insert the removable lens into the polariscope with narrow end down
  4. Place Gemstone in the prong holder into the open space as shown
  5. Turn on flashlight. Hold the upper portion of the polariscope to your eye
  6. With the gemstone visible through the upper portion, slowly turn the Rotating Lens exactly 1 full rotation. Count the number of times the gemstone darkens during the rotation. That count indicates the refractivity of the gemstone.  Repeat the process to double-check your count. 
  7. See these articles for more information:  Gemology Project  and  YourGemologist

If you are interested in buying more gem ID tools, we suggest you consider our Gem Tool Kit which contains 5 of the most important gemology tools at a discounted price.

NOTE ON SHIPPING:  The packaged weight of this item exceeds 250 grams.  Please select from eParcel (traceable/insured) or Courier delivery at the checkout.

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