Xylem E-Line Gemological Refractometer User Manual download pdf (Page 3)

Product Description

Refractive Index is one of the most important optical parameters used to identify and authenticate

polished precious and semi-precious gemstones. The E-Line Gemological refractometer is a low

cost, lightweight measuring instrument used by jewellers and traders of gemstones. The

Gemological refractometer can also be used to identify whether a particular stone is Isotropic or

Anistropic (uniaxial or biaxial).

Upper

cover

Prism

Bod

Eyepiece

Polariser

Light entrance socket

Torch

Filte

Attention and Maintenance

CAUTION:

The instrument is a delicate scientific instrument and should be treated accordingly. It has

no user serviceable parts. After use, the instrument should be placed in its carry case and

stored in a dry place. Remove battery from light source (torch) after use to prevent acid

leakage on to the instrument. Take care with contact liquids (CAUTION: Contact Liquid

– Read Material Safety Data Sheet).

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Xylem E-Line Gemological Refractometer User Manual Page 3