BS E-line Gemological Refractometer 44-861

BS E-line Gemological Refractometer 44-861
Brand: Bellingham + Stanley
Product Code: 44-861
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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
Resolution RI: 0.01
Unit Dimensions 120 x 85 x 40 mm
Unit Weight 650 g
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