Mohs scale of mineral hardness helps define the strength of minerals and natural stone, and is often referenced in countertop design and manufacturing. The scale is based on one stone or mineral’s ability to scratch another mineral. A very simple test, a rating is determined by taking one material and scraping it on another.

All natural materials are graded on The Mohs Hardness Scale. Marble, Travertine and Limestone are generally 2-3 on the Mohs scale while Granites are 

Granite - This is the strongest of all the natural stones. It is composed of feldspar and quartz, so it would have a 6 or 7 rate on the measurement of hardness scale. Being higher up on the scale

May 26,  · It is a scale to determine the hardness of the natural minerals. The stones are classified on the basis of the ranking given to them. The rating on the scale runs from 1to 10. Since people are concerned about the strength and durability of the preferred stone, the Mohs scale characterize the minerals based on the resistance to being scratched.

Oct 05,  · The quality natural stone however had no problem scratching the brass (right). This concludes that the low quality poorly stabilized turquoise stone has a hardness between 3 and 3.5. high natural hardness MOHS scale 5+ 1 to 20: 1: 3: 5: 10: 15: 20

Sep 16,  · What Are Durability Specifications for Different Natural Stone Types? Hardness: 3 to 4 on Moh’s Scale: Density: 2.5 to 2.65 Kg/cm3: Compressive Strength: 70-140 N/m2: Water Absorption: Less than 0.5% (except Rainforest Green/Brown with 2-3%) Modulus of Rupture: 12-18 N/mm2: Porosity: Quite low:

Mineral Gemstones Hardness and specific gravity are two of the major characteristics of gemstones. Hardness of a gemstone is its resistance to scratching and may be described relative to a standard scale of 10 minerals known as the Mohs scale. F. Mohs, an Austrian mineralogist, developed this scale in 1822. According to Mohs' scale, the

Another important factor is stone strength. Each natural stone has a strength rating often referred to as its Mohs hardness. The Mohs scale of mineral 

Travertine is formed in hot springs and/or limestone caves. Travertine stone has holes within the stone which are caused by carbon dioxide evasion making great for needs slip resistance areas like pools and patios. Travertine is comparable with marble in terms of hardness, ranking a 4 on the Mohs Hardness Scale. Travertine’s subtle veining

According to this scale, soapstone is the softest natural stone material for countertops at the hardness rate at two. Limestone is another material which would be very soft. We did not include that in this article as it is not very common. Marble countertops have different hardness for mohs. Most common is around 4, that is why we took that as

The Mohs scale of mineral hardness is a qualitative ordinal scale, from 1 to 10, characterizing scratch resistance of various minerals through the ability of harder material to scratch softer