However, granite is still vulnerable to staining. Granite has a Mohs hardness rating of seven. Marble Marble is limestone that has been compacted and heated over millions of years. As a result, marble is less porous and slightly stronger than limestone, but still less durable than granite.

Granites, like the Black Granite that we work with, rate between 6 and 7 on the Mohs scale. A knife will do virtually nothing to a stone this 

Granite 6-7; Natural Quartz 7; The hardness of material is measured by determining which material can scratch or be scratched by others, if they can scratch one another then they are the same hardness. For example if a given material is scratched by Corundum but not by Diamond, its hardness on the Mohs scale is 9.5.

These two stones have a Mohs hardness rating of 6 or 7. Marble is a degree or two less and though it is still a very hard stone, it's rating on the Mohs scale is about a 5. Soapstone contains one of the softest minerals in nature, talc, thus bringing it down on the scale at between a 3.5 to a 5, depending on the quality and quarry.

2. Granite is one of the hardest substances in the world. The only material that is harder than granite is a diamond. The hardness of granite makes it durable 

On the Mohs scale, granite is harder than marble which ranks between a 3 and 4, but it is softer than quartzite, which ranks at a seven. There are all types of granite, such as black, yellow,

We often see our natural stone options as specific groups of stone: Marble, Granite, Quartzite. However, it may be best to see them as a spectrum of options! In 

Click on "Calculate" or press "Enter". Visualisation of the conversion result. HARDNESS CONVERTER. From scale: HV, 30 Kg HK, 500g load and greater HRC, 150Kg, brale indenter HR15N, 15 kg load HR30N, 30 kg load HR45N, 45 kg load HB, 3000 kg, 10 mm standard ball HB, 3000 kg, 10 mm tungsten carbide ball Rm [N/mm2] To scale.

Hardness: Granite is hard and able to stand up to a great deal of wear and tear. This makes it an excellent choice for high-traffic kitchen countertops, bathrooms and other frequently used areas. Soapstone, on the other hand, is much softer and will show scratches, chips and gouges more easily. Although these can be fixed (as we'll discuss in

Discover Granite Countertops Hillsboro OR by Granite Makeover. Granite Makeover, provides high quality Granite, Quartz, marble Free Estimates for bathroom and kitchen countertops in Hillsboro OR. If you are considering natural stone kitchen counters, check out our competitive pricing and large selection of natural stones to choose from.

Granite is a light-colored igneous rock with grains large enough to be visible with the unaided eye. It forms from the slow crystallization of magma below Earth's surface. Granite is composed mainly of quartz and feldspar with minor amounts of mica, amphiboles, and other minerals. This mineral composition usually gives granite a red, pink, gray