5-9 Scratch Tester Hardness Test Pen, Industrial Mineral Identification Kit, Includes Storage Box, Relative Wear Resistance Testing & Prevents Breaking, for Marble, Jewelry, Jade, Ceramic Tiles

5-9 Scratch Tester Hardness Test Pen, Industrial Mineral Identification Kit, Includes Storage Box, Relative Wear Resistance Testing & Prevents Breaking, for Marble, Jewelry, Jade, Ceramic Tiles

• Accurate Crystal Build: Crafted from crystal for precise hardness values, 5 professional hardness pens included with tips of apatite(5#), orthoclase(6#), quartz(7#), topaz(8#) and corundum(9#), elegant texture and finish.
• Marked Mineral Rods: 5 numbered mineral inlays on metal rods (5-apatite to 9-corundum), ideal for testing gems, tiles, floors, glass, phone screens, minerals, concrete and more.
• Non-Destructive Check: Indirect visual method via magnifier—judge gem hardness by facet smoothness and edge sharpness, a non-damaging approximate hardness identification way.
• Premium Craftsmanship: Flawless Mohs tester with precision-machined multi-faceted shape for effortless use and durability, portable design with a complete set of testing tools.
• Wide Applicability: Perfect for relative hardness testing of gems, epoxy concrete, ceramics, marble, ores, optical glass, tempered phone screens and regular glass materials.