{"product_id":"gem-a-diffraction-spectroscope","title":"Gem-A Diffraction Spectroscope","description":"\u003cspan\u003eFor pure transparent (non-opaque) stones. Each type of stone has its own spectrum colour diagnostic. Simular to the prism spectroscope but works by diffracting white light to give non-prismatic perspective.\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan\u003eLight enters through a narrow slit and is then diffracted by a thin film of diffraction grating material. This produces a linear spectrum image with a generally larger view of the red part than a prism spectroscope.\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan\u003eThe spectroscope is a small and handy instrument that can be very quick to use.\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eIt may be used to test transparent gem materials including rough and broken\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003epieces, fashioned pieces, strings of beads, gems set in jewellery, ornaments and carvings.\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eThe spectrum of visible light, from red to violet can be viewed by observing\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003epure white light through a spectroscope.\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eSome gem materials modify this white light in a way which can aid identification.\u003c\/span\u003e\u003cbr\u003e\n\u003cul class=\"normal-list\"\u003e\n\u003cli\u003e\u003cspan\u003eSize length 55mm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eThe diameter of body 13mm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eThe diameter of lens 5mm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eFinish stainless steel body.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eTop \u0026amp; bottom black plastic viewers\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eWeight 14grms\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eWith leather case\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Dynagem","offers":[{"title":"Default Title","offer_id":31588629381177,"sku":"","price":129.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0116\/0219\/8585\/products\/download_2839f14e-4407-4a01-a62c-f270a3a7c780.jpg?v=1591184718","url":"https:\/\/www.dynagem.co.uk\/sv\/products\/gem-a-diffraction-spectroscope","provider":"Dynagem ","version":"1.0","type":"link"}