Granite Rock Hardness Scale

Interestingly the hardness of all black green red yellow brown pink and white granite are more or less the same.

Granite rock hardness scale. It can be scratched by all other materials. The mohs scale is a measurement of the relative hardness of minerals. 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. The mohs scale of mineral hardness was developed to identify the strength and hardness of any natural mineral.

Granite comes in at a 6 to 7 on the mohs scale meaning it is relatively hard. Rocks are made up of one or more minerals. 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. 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.

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. Because granite is a rock composed of a variety of minerals. In terms of absolute hardness quartz is a 100 and topaz is 200 twice as hard. The mohs scale is truly a comparative scale.

The hardness of stone is just one way of identify them things like color luster crystalline form and cleavage are also used. The igneous rock is comprised of mostly quartz and feldspar along with smaller amounts of various other minerals. You can confirm the granite hardness with quality reports from granite supplier and exporter of your choice. 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.

It can scratch talc but not calcite which is even harder.