Marble Hardness Scale

It can also be used for metal.

Marble hardness scale.

For example a diamond can scratch granite while granite can scratch marble. Depending on the limestone and the mineral combination within the marble most marble rates from three to five on the mohs hardness scale. Marble has a mohs hardness scale rating between 3 4. In simple words soapstone is the softest material and diamond is the hardest material.

The translucence of marble makes it especially attractive for many types of sculptures. Rocks with hardness 1 3 are soft rocks from 3 6 are medium hardness rocks and 6 10 are hard rocks. Falling down on the scale a little more are popular countertop options marble travertine and slate. As a result marble is easy to carve and that makes it useful for producing sculptures and ornamental objects.

Granite on the mohs scale. Being composed of calcite marble has a hardness of three on the mohs hardness scale. While the mohs hardness scale is certainly a worthwhile resource to provide a general guideline it does not provide all of the information for a natural stone slab. The scale used in the table is pounds force.

When black granite is measured on the mohs scale it falls somewhere between 6 and 7. 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. Each of these stones ranks at a 4 on the scale. 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.

Woods with a higher rating are harder than woods with a lower rating. As a result marble is less porous and slightly stronger than limestone but still less durable than granite. This means that marble is less scratch resistant than granite. Streak is the color of rock when it is crushed or powdered.

If you check granite hardness on the mohs scale you will find it harder than marble and softer than quartzite. The softest countertop options on the mohs scale are limestone 3 and. Marble is limestone that has been compacted and heated over millions of years. The hardness of marble is 3 4 whereas its compressive strength is 115 00 n mm 2.

The janka test measures the amount of force required to embed a 0 444 steel ball into the wood to half of its diameter. Rocks are rated on the on the moh s hardness scale which rates the rocks on the scale from 1 to 10. Hardness is determined by the ability of one mineral to scratch another. The janka scale is used to determine the relative hardness of particular domestic or exotic wood species.

Because granite is between a 6 and 7 on the mohs scale it would be able to scratch other types of stone that have lower ratings such as marble. On average it is 6 5.