{"product_id":"premium-mohs-hardness-test-kit-2-9-scale-mineral-identification-set-with-4-testing-pencils-glass-plate-accurate-hardness-testing-for-rocks-gems-geology-enthusiasts","title":"Premium Mohs Hardness Test Kit (2-9 Scale) - Mineral Identification Set with 4 Testing Pencils, Glass Plate - Accurate Hardness Testing for Rocks, Gems \u0026 Geology Enthusiasts","description":"\u003ch3\u003eAbout this item\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eFULL 2-9 HARDNESS SCALE: Includes 4 professional-grade Mohs hardness pencils (2 to 9 scale) to accurately distinguish minerals like quartz (7), topaz (8)\u003c\/li\u003e\n\u003cli\u003eLAB-GRADE PRECISION: Calibrated metal tips ensure results align with GIA\/international geological standards (error margin \u0026lt;0.5). Perfect for gemologists, students, and collectors\u003c\/li\u003e\n\u003cli\u003eALL-IN-ONE KIT, READY TO USE: Includes glass\/metal plates, polishing stones, and more for diverse testing needs\u003c\/li\u003e\n\u003cli\u003ePORTABLE DESIGN: Comes in a compact carrying case for easy transport and long-term use in field applications.\u003c\/li\u003e\n\u003cli\u003eVERSATILE APPLICATIONS: Ideal for jewelry authentication, mineral classification, geology education, and industrial material testing. Works on rocks, gems, ceramics, and more\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"HOJILA","offers":[{"title":"Default Title","offer_id":67577371721948,"sku":"B0FMFHMZVT","price":263.94,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0837\/0913\/3020\/files\/414BST_R9eL.jpg?v=1790477265","url":"https:\/\/stemora.us\/products\/premium-mohs-hardness-test-kit-2-9-scale-mineral-identification-set-with-4-testing-pencils-glass-plate-accurate-hardness-testing-for-rocks-gems-geology-enthusiasts","provider":"Stemora","version":"1.0","type":"link"}