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Juke Box Original
Spectroscope for gemstone identification through the analysis of the light spectrum
Spectroscope manual pentaprismas and grid with the entrance of light adjustable, with scale built in.
Analyzes the wavelengths from 400 to 700 nm
It is a base for attaching a spectroscope Kruss, or similar.
Carries a rotating disc lined in black fabric to place the stones to study