Qinpi Portable Mohs Hardness Test, 1-10 Scale Tester Pen, Mohs Hardness, Mineral & Rock Hardness Pen, Mineral Identification Tool, For Geologists, Collectors, For Diamond Stone And Tile Identification
QINPI
【Precision Hardness Needles】: 10 hardness needles with Mohs hardness grades 1-10, suitable for professional testing, accurately identifying the hardness of minerals and rocks, testing the abrasion resistance of tiles, stone, and glass, and evaluating the surface hardness of ceramics, metal coatings, and other materials 【Durable and Wear-Resistant】: Made of high-quality, wear-resistant materials, maintaining sharpness for extended periods, allowing for repeated use and stable performance 【Easy to Use】: The unique ten-pointed star design ensures a secure grip and smooth rotation, improving efficiency and comfort in laboratory/field testing 【Principle】: Utilizing the principle that "a harder substance can scratch a softer substance," the hardness grade is determined by scratching the surface of the object being tested and observing whether a scratch is left. Meets industry safety and quality standards, making it ideal for educational laboratories, mining, and quality control inspections 【Versatile Applications】: For geologists, educators, collectors, and hobbyists—ideal for mineral classification, research, and practical learning
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