{"product_id":"london-dichroscope","title":"London Dichroscope","description":"\u003cp\u003eThe London Dichroscope is a compact gemological instrument used to observe pleochroism in transparent and translucent colored gemstones. By revealing differences in body color when viewed from different crystal directions, it helps gemologists distinguish many doubly refractive gemstones from single-refractive simulants. A quick glance through the viewing windows can reveal subtle color shifts that might otherwise go unnoticed.\u003c\/p\u003e \u003ch3\u003eFeatures\u003c\/h3\u003e \u003cul\u003e \u003cli\u003eDesigned to detect pleochroism in colored gemstones.\u003c\/li\u003e \u003cli\u003eUses polarized light technology to display color differences side-by-side.\u003c\/li\u003e \u003cli\u003eProvides two viewing windows for easy color comparison.\u003c\/li\u003e \u003cli\u003eHelps distinguish many doubly refractive gemstones from single-refractive imitations.\u003c\/li\u003e \u003cli\u003eCompact handheld format suitable for fieldwork, trade shows, and laboratory use.\u003c\/li\u003e \u003cli\u003eReduces eye strain compared to traditional prism-based viewing methods.\u003c\/li\u003e \u003cli\u003eSimple operation with no power source required.\u003c\/li\u003e \u003c\/ul\u003e \u003ch3\u003eSpecifications\u003c\/h3\u003e \u003ctable\u003e \u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd\u003eInstrument Type\u003c\/td\u003e\n\u003ctd\u003eDichroscope\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd\u003ePrimary Function\u003c\/td\u003e\n\u003ctd\u003ePleochroism Observation\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd\u003eViewing Method\u003c\/td\u003e\n\u003ctd\u003eDual Polarized Viewing Windows\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd\u003eApplication\u003c\/td\u003e\n\u003ctd\u003eGemstone Identification and Examination\u003c\/td\u003e\n\u003c\/tr\u003e \u003c\/table\u003e \n\u003ch3\u003eNotes\u003c\/h3\u003e \u003cul\u003e \u003cli\u003eFor best results, use a strong, evenly distributed white light source.\u003c\/li\u003e \u003cli\u003eView transparent or translucent colored gemstones with light passing through the stone.\u003c\/li\u003e \u003cli\u003eRotate both the gemstone and the instrument to locate the direction showing the strongest color contrast.\u003c\/li\u003e \u003cli\u003ePleochroism strength varies depending on gemstone species and crystal orientation.\u003c\/li\u003e \u003c\/ul\u003e","brand":"Otto Frei","offers":[{"title":"Default Title","offer_id":48317727441110,"sku":"161.167","price":50.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0609\/9832\/0342\/files\/161.167_thumb_4724c44b-6fc9-48da-a0cc-6f0b08a3943e.jpg?v=1780444581","url":"https:\/\/www.ottofrei.com\/de\/products\/london-dichroscope","provider":"Otto Frei","version":"1.0","type":"link"}