Granite Rock Hardness Scale

The mohs scale of mineral hardness m oʊ z is a qualitative ordinal scale characterizing scratch resistance of various minerals through the ability of harder material to scratch softer material.

Granite rock hardness scale. Granite comes in at a 6 to 7 on the mohs scale meaning it is relatively hard. You can confirm the granite hardness with quality reports from granite supplier and exporter of your choice. The mohs scale is a measurement of the relative hardness of minerals. The mohs scale of mineral hardness was developed to identify the strength and hardness of any natural mineral.

The igneous rock is comprised of mostly quartz and feldspar along with smaller amounts of various other minerals. Because granite is a rock composed of a variety of minerals. Interestingly the hardness of all black green red yellow brown pink and white granite are more or less the same. Created in 1812 by german geologist and mineralogist friedrich mohs it is one of several definitions of hardness in materials science some of which are more quantitative.

According to the scale talc is the softest. It can scratch talc but not calcite which is even harder. Mohs scale of mineral hardness is named after friedrich mohs a mineralogist mohs scale is ordered by hardness determined by which minerals can scratch other minerals. Before making an actual purchase it is expected that you ask your granite supplier about a granite quality testing report putting detailed data on granite.

The mohs scale is truly a comparative scale. An example of the hardness of a granite countertop can be seen in the fact that a knife blade will not scratch the surface. Rocks are made up of one or more minerals. For instance if a stone has a mohs hardness of seven then that stone is solid enough to scratch another stone with a rating of six or lower.

Granite is not assigned a number on the mohs scale of hardness.