{"product_id":"gemological-spectroscope-wavelength-scale-adjustable-slit","title":"Hand-Held Gemological Spectroscope with Wavelength Scale \u0026 Adjustable Slit","description":"\u003cp\u003eThis professional hand-held gemological spectroscope with wavelength scale is designed for examining the absorption spectra of gemstones, helping gemologists and jewellers identify characteristic absorption lines and spectral patterns.\u003c\/p\u003e\n\u003cp\u003eEquipped with a direct vision prism and built-in wavelength scale, the spectroscope provides clear spectral dispersion for accurate visual examination. The adjustable 0–0.8 mm slit allows precise control of incoming light, helping produce sharper and more defined spectral lines for easier interpretation.\u003c\/p\u003e\n\u003cp\u003eA 40 mm focal-length magnifier improves visibility of the spectrum, while calibration for viewing along the F-axis at 486.1 nm supports consistent observations.\u003c\/p\u003e\n\u003cp\u003eWith its compact 17 mm barrel, the instrument is comfortable to hold and convenient for use both in the laboratory and in the field. It is supplied with a protective storage case for safe storage and transport.\u003c\/p\u003e\n\u003cp\u003eKey Features\u003cbr\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eProfessional gemological spectroscope with wavelength scale\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eDesigned for gemstone identification and spectral analysis\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eBuilt-in wavelength scale for easier interpretation\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eDirect vision prism for clear spectral dispersion\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eAdjustable slit: 0–0.8 mm\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eAdjustable light entry helps sharpen absorption lines\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e40 mm focal-length magnifier\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eViewing aligned with the F-axis at 486.1 nm\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eCompact 17 mm barrel\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003ePortable hand-held design\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eSuitable for laboratory and field use\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eSupplied with protective storage case\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eSpecifications\u003cbr\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eInstrument Type: Hand-Held Gemological Spectroscope\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eOptical System: Direct vision prism\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eScale: Built-in wavelength scale\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eSlit: Adjustable\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eSlit Range: 0–0.8 mm\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eMagnifier Focal Length: 40 mm\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eF-Axis: 486.1 nm\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eBarrel Diameter: 17 mm\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eApplication: Gemstone spectral examination and identification\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eDesign: Portable \/ hand-held\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eStorage Case: Included\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eIdeal For: Gemologists and gemmology students, Professional jewellers, Gemstone dealers and buyers, Jewellery appraisers, Gemstone identification, Examining gemstone absorption spectra, Observing absorption lines and spectral patterns, Gemological laboratories, Field gemstone examination\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow It Works\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA spectroscope separates transmitted or reflected light into its component colours. Certain gemstones absorb specific wavelengths of light, producing characteristic absorption lines or bands within the visible spectrum.\u003c\/p\u003e\n\u003cp\u003eBy examining these spectral patterns and comparing them with known reference data, the spectroscope can provide valuable information to assist with gemstone identification.\u003c\/p\u003e\n\u003cp\u003eThe adjustable slit allows the amount of entering light to be controlled. Reducing the slit width can help produce sharper spectral features, while a wider setting allows more light to enter when examining less strongly illuminated stones.\u003c\/p\u003e\n\u003cp\u003eWhy Choose This Gemological Spectroscope?\u003c\/p\u003e\n\u003cp\u003eFor professional gemstone work, the addition of both an adjustable slit and wavelength scale provides greater control and reference capability than a basic fixed-slit spectroscope.\u003c\/p\u003e\n\u003cp\u003eIts combination of a direct vision prism, 0–0.8 mm adjustable slit, 40 mm focal-length magnifier and compact 17 mm body makes it a practical instrument for professional jewellers, gemologists and gemstone buyers who need a portable tool for spectral examination.\u003c\/p\u003e\n\u003cp\u003ePlease note: A spectroscope is an identification aid and spectral observations should be interpreted alongside other appropriate gemological tests when identifying gemstones.\u003c\/p\u003e","brand":"I.DAVID Store","offers":[{"title":"Default Title","offer_id":45284044046638,"sku":"GMI-7013","price":375.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0751\/9309\/0350\/files\/SPECTROSCOPE-01.jpg?v=1788706065","url":"https:\/\/idavid.be\/products\/gemological-spectroscope-wavelength-scale-adjustable-slit","provider":"I.DAVID","version":"1.0","type":"link"}