Mohs Hardness Test Kit

Mohs Hardness Test kit - convenient and durable to use.

Made of metal, black pen look, with good texture and exquisite appearance. There are 10 Hardness Test Pens in the box (from 1 to 10 on the Mohs Skala)

This hardness test pen is suitable for gemstones, ceramic tiles, floors, glass, mobile phone screens, minerals, concrete, etc. 

Please note that the scribe intensity should be moderate, neither too light nor too strong to avoid an intense scratching on the test specimen.

Box dimensions: 18x12.5x4 cm

Hardness Test pen: 10cm