{"product_id":"parts-of-leitz-pol-microscope-fedorov-stage-n_d-1-516-1-554-1-649","title":"Parts of Leitz POL Microscope Fedorov Stage – n_D 1.516 \/ 1.554 \/ 1.649","description":"\u003cp\u003eParts of Leitz POL Microscope Fedorov Stage – n_D 1.516 \/ 1.554 \/ 1.649 \u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eCondition\u003c\/b\u003e: Vintage optical hardware in excellent structural condition. Lenses are intact with clear optics.\u003c\/p\u003e\n\u003ch4\u003e\u003cb\u003eIncluded Refractive Index Groups\u003c\/b\u003e\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003e\u003cspan class=\"math-inline\"\u003en_D = 1.516\u003c\/span\u003e Group\u003c\/b\u003e: Standard optical glass index, ideal for general thin-section analysis, slide cover glasses, and immersion media.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003e\u003cspan class=\"math-inline\"\u003en_D = 1.554\u003c\/span\u003e Group\u003c\/b\u003e: Specifically calibrated for quartz (\u003cspan class=\"math-inline\"\u003e$\\omega = 1.544, \\epsilon = 1.553$\u003c\/span\u003e) and medium-index rock-forming minerals.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003e\u003cspan class=\"math-inline\"\u003en_D = 1.649 \u003c\/span\u003eGroup\u003c\/b\u003e: High-index glass matching, optimized for amphiboles, pyroxenes, olivine, and high-tilt angle measurements.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Leitz","offers":[{"title":"Default Title","offer_id":46408100544591,"sku":null,"price":600.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0636\/5888\/5199\/files\/4708F6701397497D1354AF979FDB3402.jpg?v=1786668975","url":"https:\/\/chengtuoptics.com\/products\/parts-of-leitz-pol-microscope-fedorov-stage-n_d-1-516-1-554-1-649","provider":"Chengtu Optics","version":"1.0","type":"link"}