The Mohs Hardness Scale is a set of ten reference minerals (numbered 1 through 10) that are used to determine the relative hardness of minerals and other 

Wood Hardness Chart. The hardness of wood is calculated by a test that measures the force needed to embed a .444-inch steel ball to half its diameter in wood. This is the industry standard for determining the ability of different species to tolerate denting and normal wear and tear.

The Mohs hardness scale measures the relative hardness of gemstones, as determined by their scratch hardness (the resistance of a mineral when scratched 

Scientifically speaking, hardness measures the ability to resist scratching, nothing more. A gemstone’s overall wearability grade takes hardness into account. However, it’s only one of several factors to consider. Diamond edge and setting, captured area 3 x 2 mm. Photo by Kurt Bauschardt. Licensed under CC By-SA 2.0.

The definition of hardness in gemstones in addition to complete hardness table of famous gemstones.

Sep 18, - You may have heard us here at Jewlery by Da'oud talking about a stones hardness, particularly in comparison to other stones.

is why many gems and stones have a range of hardness, it depends on the specimen. On the chart below minerals with a higher number can scratch all minerals 

Gems are minerals that occur naturally, forming in crystalline structures, which create varying levels of strength. A German geologist, Friedrich Mohs, created 

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 

Gemstone Hardness Chart Hardness is defined as resistance to scratching and is graded between 1 (softest) and 10 (hardest) using the Mohs scale of mineral hardness. Diamond has a hardness of 10 (hardest) on this scale ,it is the hardest natural material known.

2. RUBY- 9/10. A ruby, much like a diamond, has a high hardness at 9 points. In general, rubies are a variety of red corundum. Blue corundum is known as sapphires. Rubies are one of the most