Which Is Harder Granite Limestone Or Marble

Marble basically classifies into four groups which include.

Which is harder granite limestone or marble.

We can see from this government report that both limestone and marble are affected by the problem of acid rain. Limestone generally ranks at around a 3 on the scale while marble falls between 3 and 4. Granite vs limestone characteristics. Both limestone and marble tend to react with acidic substances by forming a gray or black crust of gypsum crystals.

Granite vs limestone characteristics assist us to distinguish and recognize rocks. An example of the hardness of a granite countertop can be seen in the fact that a knife blade will not scratch the surface. Select limestone with mineral dolomite present as this type of limestone can be polished and is harder than other types of limestone. Meaning no two slabs are alike and each has its own similar yet unique composition.

Marble and limestone lie at the opposite end of the hardness scale from granite. Characteristics of rocks include texture appearance color fracture streak hardness etc. Granite is a stronger and harder stone than marble is which lends it a shiny glossy appearance compared to marble s dull smoothness. As a result quarry workers contractors and interior designers use the words marble limestone and granite to refer to stones of particular types or qualities even if they don t meet the exact chemical compositions.

It goes granite marble limestone and it comes down to simple minerals. Marble is relatively hard but not as hard as granite. Limestone on the other hand is basically just a huge pile of non interlocked but cemented calcite caco3 which is the definition of a mohs 3. However with certain polishing sealants modern marble can be made to look much glossier than it did in the past.

Though some rocks look identical they have certain characteristics which distinguish them from others. From greek statues to roman baths it has been used for centuries in just about every possible interior and exterior application. And while in general your quartzite is harder than your granite or your granite is harder than your marble keep in mind that natural stone is a product of mother nature. Granites have large amounts of quartz sio2 and other hard silicate materials quartz 7 mohs.

Marble granite and limestone have been in use for thousands of years long before geology began to develop as a science. Groups a b c and d. Most people are familiar with marble. Wipe with a clean damp cloth if dirty.

While marble is slightly harder and denser than limestone both rate very low on the mohs scale a rating used to measure the hardness of stones. The igneous rock is comprised of mostly quartz and feldspar along with smaller amounts of various other minerals.