Refractometer with Inbuilt Light Source

$235.00
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Gemmological Refractometer


Gemmological Refractometer

Our standard gemstone refractometer provides a sharp image and good readability and has inbuilt LED illumination.

Gemstone refractometers are used for the classification and quality control of gemstones. The gemstone is simply placed on the prism with a drop of contact fluid (RI Fluid). The refractive index of the gemstone is read through the ocular of the refractometer. The refractive index is an important parameter in classifying a mineral or gemstone, however it is only one of a suite of tests that gemmologists use to accurately identify the gemstone type.

Each mineral has its typical refractive index, due to its chemical composition and crystalline structure. Gemstones with a high RI are generally more brilliant, ie a diamond has a RI of around 2.4, whereas quartz approximately 1.55. Our gemstone refractometers are characterised by their particularly sharp image and good readability. The refractometer can be used as a mobile unit with an ordinary light source or with sufficient ambient lighting. LED illumination is also available with a wavelength of 589 nm.

The gem refractometers are constructed of cast aluminium, and are supplied complete with a manual.

Measuring range: 1.30 to 1.81

Measurement Increments: 0.01 Inbuilt LED light

Powered by 3 x LR44 Button Batteries

Supplied with Refractive Index Solution

(GIRFI)

Dimensions: 112mm long x 60mm high x 30mm wide.

Weight 330 Grams

Case Size: 220mm x 110mm x 70mm

SKU GIRFI
Shipping Weight 0.9000kg
Shipping Width 0.150m
Shipping Height 0.150m
Shipping Length 0.200m
Shipping Cubic 0.004500000m3
Unit Of Measure ea

12 Months Manufacturers Warranty

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