The Mohs hardness scale measures the relative hardness of gemstones, as determined by their scratch hardness (the resistance of a mineral when scratched with a pointed testing object.) The diamond is the hardest natural gemstone in the world and measures a ten on the hardness scale.

The Mohs Hardness Scale was developed by German mineralogist, Friedrich Mohs in 1812. The scale consists of 10 readily available minerals of particular hardness 

MOH"S SCALE OF HARDNESS 10 Diamond 9 Corundum 8 Topaz 7 Quartz 6 Feldspar 5 Apatite 4 Fluorite 3 Calcite 2 Gypsum 1 Talc

120 rows · Gems with a hardness rating of 1-2 are considered soft, while those in the range of 3-5 are

Gemstones come in varying hardnesses. By understanding the number associated with each stone, you can feel fully prepared to protect your jewelry. The experts classify gem 'hardness' using a universally accepted grading system called the Mohs hardness scale. To really grasp the concept, take a peek at the photo below.

Hardness of a gemstone is one of the components that defines the durability of gemstones. (Other components are toughness, brittleness and stability - resistance to heat and/or chemicals.) Thus it is a comparative hardness scale, with the hardness of one mineral relative to another mineral on the list. As can be seen in the list, quartz has

What Is Gemstone Hardness. Mohs scale of hardness is widely used to measure the hardness of gemstones. Created by German mineralogist Friedrich Mohs in 1822, each gem is assigned a hardness number. A gem is able to scratch another one with a lower hardness number. So a gem with hardness of 7 can scratch a gem with a hardness of 6. ‍

Minerals with a Mohs hardness of 1 to 2 are considered soft, minerals from 3 to 5 are medium-hard, while those minerals with a hardness of 6 or more are hard. Minerals with a Mohs hardness of 7 or more are very hard and this is usually considered to be the minimum hardness to define a gemstone. With a Mohs hardness od 10, diamond is the hardest

Gemstone Hardness is a measure of how difficult (or easy) it is to scratch the surface of the gemstone. The hardest gemstones (diamonds, rubies and sapphires) get a rating closer to 10 on the Mohs scale, while the softer gemstones (amber, chrysocolla and pearl) are placed closer to 1 (see the entire Mohs index below).

The Mohs Scale of Hardness ; 10, Diamond ; 9, Corundum (rubies and sapphires) ; 8, Topaz ; 7, Quartz [Example: It scratches window glass] ; 6, Feldspar [Example: A 

Hardness defines the durability of the gemstone, the ability to retain its surface finish and polish. Moh’s scale is used to measure the hardness of a stone. It is a relative and not an absolute scale and created to compare the hardness of gemstones. This scale rates hardness of minerals on a scale of 1 to 10.