{"product_id":"mohs-hardness-test-kit-mohs-hardness-picks-5-pack-mohs-hardness-tester-industrial-mineral-identification-kit-gem-jade-jewelry-5-9-scratch-tester","title":"Mohs Hardness Test Kit Mohs Hardness Picks 5 Pack Mohs Hardness Tester Industrial Mineral Identification Kit Gem Jade Jewelry 5-9 Scratch Tester","description":"\u003cp\u003e\u003cb\u003eBrand:\u003c\/b\u003e Saladulce\u003c\/p\u003e\u003cp\u003e\u003cb\u003eFeatures:\u003c\/b\u003e \u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eModel: 5#--9# Mohs hardness\u003c\/li\u003e\n\u003cli\u003eSize: pen 100x6mm; box 150x100mm\u003c\/li\u003e\n\u003cli\u003eMaterial: pen point(5 # Apatite; 6 # Orthoclase; 7 # Quartz; 8 # Topaz; 9 # Corundum)\u003c\/li\u003e\n\u003cli\u003eWeight: pen7.8g, total weight 221g\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cb\u003emodel number:\u003c\/b\u003e Denny-059\u003c\/p\u003e\u003cp\u003e\u003cb\u003ePart Number:\u003c\/b\u003e Denny-059\u003c\/p\u003e\u003cp\u003e\u003cb\u003eDetails:\u003c\/b\u003e Introduction of hardness pen\u003cbr\u003e\nThe hardness of a gemstone refers to the ability of the gemstone to resist scoring, pressing and grinding of foreign objects.\u003cbr\u003e\nThe hardness of a gemstone is an important factor determining the value of the gemstone.\u003cbr\u003e\nWhen two minerals with different hardnesses scratch each other, they will leave scratches on the surface of the minerals with lower hardness.\u003cbr\u003e\nPhysical scratch test\u003cbr\u003e\nThis method is based on the comparison between the engraved gemstone minerals and the standard hardness minerals.\u003cbr\u003e\nThe hardness difference between two adjacent standard minerals is different.\u003cbr\u003e\nThe difference between corundum and diamond is large.\u003cbr\u003e\nThe Mohs hardness pen is 5 # apatite, # 6 orthoclase, 7 # quartz, # 8 Topaz # 9 corundum\u003cbr\u003e\nin the Mohs hardness tester set on five heel metal rods respectively.\u003cbr\u003e\nUse the edges and corners of these ore to score the sample to be tested.\u003cbr\u003e\nAccording to whether there are scratches on the sample to determine the hardness of the sample:\u003cbr\u003e\nIf scratches are left, it means that the hardness of the sample is lower than the hardness of the hardness pen.\u003cbr\u003e\nIf it cannot be moved, the hardness of the sample is higher than the hardness of the hardness pen.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eEAN:\u003c\/b\u003e 0889555386292\u003c\/p\u003e\u003cp\u003e\u003cb\u003ePackage Dimensions:\u003c\/b\u003e 8.1 x 5.6 x 1.8 inches\u003c\/p\u003e","brand":"Saladulce","offers":[{"title":"Default Title","offer_id":44509811900502,"sku":"B086L5TP48","price":29.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0664\/6471\/0742\/files\/711kHEqtkbL.jpg?v=1776478227","url":"https:\/\/www.matildaco.com\/products\/mohs-hardness-test-kit-mohs-hardness-picks-5-pack-mohs-hardness-tester-industrial-mineral-identification-kit-gem-jade-jewelry-5-9-scratch-tester","provider":"Matilda Co","version":"1.0","type":"link"}