Bellingham + Stanley E-line Gemological Refractometers

The E-Line Gemological refractometer is a low cost, lightweight measuring instrument used by jewellers and traders of gemstones to measure polished stones over a refractive index range of 1.30 to 1.81 RI. The instrument can also be used to identify whether a particular stone is Isotropic or Anistropic (uniaxial or biaxial).

  • Features
  • Video

The E-Line Gemological refractometer is a low cost, lightweight measuring instrument used by jewellers and traders of gemstones to measure polished stones over a refractive index range of 1.30 to 1.81 RI. The instrument can also be used to identify whether a particular stone is Isotropic or Anistropic (uniaxial or biaxial).

For full details on the use refractometer and data relating to the RI of gemstones, please download the instruction manual.

The instrument is made of painted durable alloy and is supplied with an illuminating device, polarising filter and instruction manual.

Specifications
Measuring Range 1.30 – 1.81 RI
Minimum Graduation (RI) 0.01 RI
Size 30 x 70 x 130mm
Weight 400g
Order CodeDescription
44-861 E-line Gemological refractometer
Contact liquids for use with solid samples
Order CodeDescriptionRefractive Index Value (RI)
10-43 Monobromonapthelene (6ml) 1.65
10-61 Methyl Iodide (3ml) 1.74
10-62 Sulphated methyliodide (10ml) 1.79