Product Name: Mohs hardness pen 　　
Model: NYD-6 　　
Applications: jewelery, ceramic tile, flooring, glass, mobile phone screens, minerals, concrete, etc. 　　
In accordance with the anti-abrasion ability gradually increase its order level is Fluorite 4 FLUORITE; Apatite 5 APATITE; Orthoclase 6 ORTHOCLASE; Quartz 7 QUARTZ; Topaz 8 TOPAZ; Corundum 9 CORUNDUM; 　　
Product Features: 　　
* PH10 crystals made accurate value; 　　
* Multi-faceted type carefully processed, convenient and durable; 　　
* Pure stainless steel, good texture, refined aesthetic appearance; 　　
* Long 130mm, 60 mm diameter, high-grade wooden box 　　
* Easy to carry, the full range. Product Reference Figure: Mohs hardness pen test methods:

• Model: NYD-6:Fluorite 4 FLUORITE; Apatite 5 APATITE; Orthoclase 6 ORTHOCLASE; Quartz 7 QUARTZ; Topaz 8 TOPAZ; Corundum 9 CORUNDUM;

Model: NYD-6:Fluorite 4 FLUORITE; Apatite 5 APATITE; Orthoclase 6 ORTHOCLASE; Quartz 7 QUARTZ; Topaz 8 TOPAZ; Corundum 9 CORUNDUM;Magellan