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SPECTROSCOPE Gem-A
Diffraction grating Spectroscope with OPL optic
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This spectroscope is based on the principle of diffraction. Here light is diffracted by a thin film of diffraction grating material after it enters through a narrow slit.
A light source is needed to use the instrument.
Both rough and cut gemstones can be examined using a spectroscope..
OPL-GA
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