Mohs Hardness Test Pen, 2-9 Scratch Tester, with Storage Box, Industrial Mineral Identification Kit, for Ceramic Floor Glass Gems Jade Jewelry
$160.26
$160.26
$
79
.99
$79.99
- 【Mohs hardness scale】Mohs hardness scale is divided into levels 2-9. The numerical samples of each level are as follows: 2# gypsum, 3# calcite, 4# fluorite, 5# apatite, 6# orthoclase, 7# Quartz, 8# topaz, 9# corundum.
- 【Premium Material】The rock hardness test kit is made of stainless steel, sturdy and durable. There are 8 hardness pens and 8 inspection samples in the box.
- 【High sensitivity】The metal hardness tester has high accuracy, multi-faceted shape and careful processing, making it more convenient and durable to use.
- 【Wide range of uses】The hardness test kit is used to test various materials such as gemstones, jade, ceramic tiles, floors, glass, mobile phone screens, minerals, concrete and more.
- 【Instructions for use】When using the metal test kit, keep the pen tip at 70° above the ground, press the pen tip, draw a straight line above the object being tested, and determine the hardness level based on the scratches.
