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- Low cost, lightweight instrument using refractive index to identify and authenticate polished precious and semi-precious gemstones in jewellery and gemstone industries
- Can also be used to identify whether a particular precious stone is Isotropic or Anistropic (uniaxial or biaxial)
- Supplied with hard carry case, polariser, illuminator (torch) and instructions including summary of typical refractive index values
|Range||Refractive Index (RI): 1.30 to 1.81|
|Unit Dimensions||120 x 85 x 40 mm|
|Unit Weight||650 g|