DOJBK Mohs Hardness Test Kit, 1-10 Scratch Tester with Ten Point Golden Star Design, Tips, Quick Test, Easy To Use, Identification Tool

10 SCALE PRECISION TIPS - Includes 10 precision probe graduated to Mohs hardness scale from 1 to 10, which allow for accurate identification of the hardness of minerals, rocks and stone samples for professional geological testing and daily sample analysis Sturdy and Durable: Made of high quality wear-resistant material, with great resistance to abrasion and deformation, retain tip sharpness and structural stability for long time use with consistent and uniform testing performance ERGONOMIC STARSHAPED GRIP - Designed with an ergonomic 10-point star-shaped grip for a secure, non-slip hold, and smooth rotation, which greatly facilitates its use and improves testing efficiency in both field and laboratory exploration SAFETY & QUALITY CERTIFICATION - Manufactured to international industry safety and quality standards, with strict quality controls. Ideal for school labs, mining field work and daily industrial quality control inspection Multiple scenarios use: suitable for geologists, educators, mineral collectors and hobbyists. Perfect for mineral classification, geological research, didactic demonstrations and hands-on projects