All natural materials are graded on The Mohs Hardness Scale. Marble, Travertine and Limestone are generally 2-3 on the Mohs scale while Granites are 

Granite comes in at a 6 to 7 on the Mohs scale, meaning it is relatively hard. The igneous rock is comprised of mostly quartz and feldspar, 

Marble countertops have different hardness for mohs. Most common is around 4, that is why we took that as the base. Some Brazilian marble would be close to 5 in 

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.

One way to determine the hardness of an abrasive is to use the Mohs' hardness scale. The scale ranges from 1 to 10, with 1 being the softest (talc) and 10 being the hardest (diamond). Most abrasives that effectively achieve an anchor pattern on a surface have a Mohs' hardness of at least 6.0. Mohs'. The Mohs' scale of hardness, devised by

Orthoclase is a feldspar mineral with a chemical composition of KAlSi 3 O 8. It is one of the most abundant rock-forming minerals of the continental crust. Orthoclase is most widely known as the pink feldspar found in many granites and as the mineral assigned a hardness of "6" in the Mohs hardness scale. ADVERTISEMENT.

mohs hardness scale chart for granite sandstone marble What is the order of hardness for Granite Lizenithne and marble Using Mohs scale of hardness for minerals 6 5. Moh s Scale of Hardness Marble amp Granite .

Select Gems Ordered By Mohs Hardness ; Alexandrite, 8½, Nepheline ; Chrysoberyll, 8½, Neptunite ; Holtite, 8½, Pargasite ; YAG, 8½, Richterite 

The hardness of a mineral relates to its resistance from abrasion, and is defined in terms of Mohs hardness scale. This scale designates a value ranging from 1 to 10 (with .5 increments) for each

Apatite is said to be as hard as glass or a knife. 6: Granite is classified as the sixth hardest material per the Mohs scale. Also ranked this high is orthoclase, a gemstone that becomes igneous rock. It's on part with feldspar or steel in terms of hardness.

Most marbles and limestones fall in the 3-4 area and most granite materials fall between 6.5-7 with quartz and quartzites being marginally harder (7). When it