This hand-held spectroscope with scale is a professional tool designed for accurate gemstone identification. Equipped with a built-in wavelength scale and a direct vision prism, it allows you to clearly analyze absorption lines and spectral patterns in gemstones. The adjustable slit (0–0.8 mm) provides control over light entry, resulting in sharper, more precise readings. Its 40 mm focal-length magnifier enhances visibility and helps reveal even subtle spectral features. Calibrated for viewing along the F-axis (486.1 nm), this spectroscope delivers consistent, reliable results. The compact 17 mm barrel ensures a comfortable grip, making it ideal for both field work and laboratory use.Includes a protective plastic storage case. Key Features Professional spectroscope with wavelength scale Adjustable slit (0–0.8 mm) for improved clarity Direct vision prism for clean spectral dispersion 40 mm focal-length magnifier View aligned with the F-axis (486.1 nm) Slim 17 mm barrel for comfortable use Supplied in a plastic storage case Essential for gemologists, jewelers, and gemstone buyers
