Discover the Mohs Scale Gem Hardness Pencils, an essential tool for accurate gemstone and mineral identification. Designed for jewelers, gemologists, collectors, and researchers, these specialized pencils help determine the hardness of gemstones using the internationally recognized Mohs hardness scale. Easy to use and highly reliable, they are ideal for both beginners and professionals involved in gemstone testing.

This practical set includes 5 hardness pencils covering Mohs scale 6 to 10, neatly packed in an attractive velvet carry box for safe storage and portability.

Package Contents:
1 Pack = 5 Hardness Pencils (6–10)
English user instructions included
Proudly Made in India

Each hardness pencil features a tip made from a mineral corresponding to the Mohs hardness scale:

6 – Orthoclase
7 – Quartz
8 – Topaz
9 – Corundum
10 – Diamond

These pencils are used to perform a scratch test on a flat surface of a gemstone or mineral. Since the method leaves a small mark, it is typically used on rough stones or inconspicuous areas. The test begins with a lower hardness pencil and gradually moves to higher numbers until a tiny scratch appears. For example, if pencil 8 scratches a stone but pencil 7 does not, the stone’s hardness is approximately 7.5 on the Mohs scale.

Apart from gemology, Mohs hardness pencils are also widely used in geological research, industrial testing, construction analysis, and material surface hardness evaluation, including concrete floor hardness testing.

#MohsScale #GemstoneTesting #GemologyTools #HardnessTesting #MineralIdentification #GemstoneTools #JewelryTools #IndustrialTesting #MahavirGems