Gemologists use a variety of tools and equipment which allow for the accurate tests to be performed in order to identify a gemstone by its specific characteristics and properties.
These include:
- Corrected 10× loupe
- Microscope
- Refractometer
- Polarising filter
- Magnifying eyepiece
- Contact liquid for RI (refractive index) up to 1.81
- Polariscope
- Optic figure sphere
- Dichroscope
- Spectroscope (handheld or desktop)
- Penlight
- Tweezers
- Stone cloth
- Color filter
- Immersion cell
- Ultraviolet lamp
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