{"product_id":"portable-polariscope-flashlight-case","title":"Portable Polariscope With Flashlight \u0026 Case","description":"\u003cp\u003eThis portable polariscope is designed to differentiate between singly refractive (isotropic) and doubly refractive (anisotropic) stones. By placing a gemstone between two polarizing filters and rotating the top lens, you can observe characteristic light reactions that reveal important optical properties—an essential test in gem identification.\u003c\/p\u003e\n\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eDetermines isotropic vs. anisotropic gemstones\u003c\/li\u003e\n\u003cli\u003eRotating top polarizing lens for observing optical reactions\u003c\/li\u003e\n\u003cli\u003eDiffused bottom lens for even light distribution\u003c\/li\u003e\n\u003cli\u003eIncludes removable auxiliary lens (non-magnifying)\u003c\/li\u003e\n\u003cli\u003eFlashlight attaches securely to base with screw fitting\u003c\/li\u003e\n\u003cli\u003eCompact, portable design for bench or field use\u003c\/li\u003e\n\u003cli\u003eIncludes zippered storage case\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eInstrument Type\u003c\/th\u003e\n\u003ctd\u003ePortable Polariscope\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eConfiguration\u003c\/th\u003e\n\u003ctd\u003eRotating Top Lens, Diffused Bottom Lens, Removable Auxiliary Lens\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eLight Source\u003c\/th\u003e\n\u003ctd\u003eDetachable Flashlight\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eManufactured In\u003c\/th\u003e\n\u003ctd\u003eChina\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eWhat's Included\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eItem\u003c\/th\u003e\n\u003cth\u003eQty\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePortable Polariscope Main Body\u003c\/td\u003e\n\u003ctd\u003e1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFlashlight\u003c\/td\u003e\n\u003ctd\u003e1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAuxiliary Lens\u003c\/td\u003e\n\u003ctd\u003e1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eZippered Storage Case\u003c\/td\u003e\n\u003ctd\u003e1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eNotes\u003c\/h3\u003e\n\u003cp\u003eThe included lenses function as polarizing and diffusing elements and do not provide magnification. Position the stone centrally between the filters and rotate the top lens to observe changes in light and dark areas during testing.\u003c\/p\u003e","brand":"Otto Frei","offers":[{"title":"Default Title","offer_id":43581437575382,"sku":"161.155","price":58.85,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0609\/9832\/0342\/files\/portable-polariscope-with-flashlight-and-case-otto-frei.jpg?v=1719957556","url":"https:\/\/www.ottofrei.com\/products\/portable-polariscope-flashlight-case","provider":"Otto Frei","version":"1.0","type":"link"}