Granite Rock Hardness Scale

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.

Granite rock hardness scale.

It can scratch talc but not calcite which is even harder. Granite is not assigned a number on the mohs scale of hardness. 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. In terms of absolute hardness quartz is a 100 and topaz is 200 twice as hard.

It can be scratched by all other materials. You can confirm the granite hardness with quality reports from granite supplier and exporter of your choice. The mohs scale of mineral hardness was developed to identify the strength and hardness of any natural mineral. The mohs scale is a measurement of the relative hardness of minerals.

Granite comes in at a 6 to 7 on the mohs scale meaning it is relatively hard. The hardness of stone is just one way of identify them things like color luster crystalline form and cleavage are also used. 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. 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.

Rocks are made up of one or more minerals. Interestingly the hardness of all black green red yellow brown pink and white granite are more or less the same. According to the scale talc is the softest. The igneous rock is comprised of mostly quartz and feldspar along with smaller amounts of various other minerals.

The mohs scale is truly a comparative scale.