REFRACTOMETER

Essential for Gemomogical Discernment.

Measurements of the refractive index are the most important test in
gemological discernment.

FEATURES
Top in the Japanese market.
Wide RI range from 1.30 to 1.81.
Supplied with polarizing filter to observe birefringence.

Product name Refractometer RM-181
Accessories Polarizing fillter
Option Refraction Liquid (1.81)
POLARISCOPE

Sorting Out Imitations.

Discerning between single and double refractions using a polariscope is
the first step in gemologocal discernment.

FEATURES
Effective in distinguishing single refractive gemstones from double
refractive ones.

Product name Polariscope
SPECTROSCOPE (Direct Vision Type) SPECTROSCOPE WITH WAVELENGTH SCALE

Discernment of gemstones and sorting stones
that resemble one another.

FEATURES
Spectroscopes measure the characteristic spectrum through principle
ingredients and coloration elements contained in the gemstone.
It is a device that differentiates judging the type of gem.

Product name Spectroscope (Direct Vision Type)

Product name Spectroscope with Wavelength Scale
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