Length: 130mm Diameter: 20 mm Material: Aluminum (Heavy Duty) Inside Instruction: Prism Type Durable
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Pocket Diffraction Grating Spectroscope Gem Tool + Jadeite Filter Gemstone Tester + 40X 25mm Glass Jeweler
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CLMG-7204 Spectroscope - Prism Spectroscope, Big Size, Heavy Duty
Professional Prism/Prismatic Spectroscope Gem Gemstone Tool for Gemological use
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Length: 130mm Diameter: 20 mm Material: Aluminum (Heavy Duty) Inside Instruction: Prism Type Durable
Big Prism Spectroscope
A handheld spectroscope for visible light shows the absorption lines of the elements involved in producing its color. For instance, it helps to
CLMG-7204 Spectroscope - Prism Spectroscope, Big Size, Heavy Duty & Li
RSpec / Real-time Spectroscopy