Which Is Harder Granite Limestone Or Marble

Marble granite and limestone have been in use for thousands of years long before geology began to develop as a science. It goes granite marble limestone and it comes down to simple minerals. Limestone generally ranks at around a 3 on the scale while marble falls between 3 and 4.

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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.

Which is harder granite limestone or marble.

From greek statues to roman baths it has been used for centuries in just about every possible interior and exterior application. Both limestone and marble tend to react with acidic substances by forming a gray or black crust of gypsum crystals. Granite vs limestone characteristics. Limestone imported from other countries is often light or even dark red brown or black.

Marble and limestone lie at the opposite end of the hardness scale from granite. Granite is a stronger and harder stone than marble is which lends it a shiny glossy appearance compared to marble s dull smoothness. Granites have large amounts of quartz sio2 and other hard silicate materials quartz 7 mohs. Characteristics of rocks include texture appearance color fracture streak hardness etc.

An example of the hardness of a granite countertop can be seen in the fact that a knife blade will not scratch the surface. 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. Right away we have a hard decision to make. Marble basically classifies into four groups which include.

Most people are familiar with marble. Granite comes in at a 6 to 7 on the mohs scale meaning it is relatively hard. Marble is relatively hard but not as hard as granite. Groups a b c and d.

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. The igneous rock is comprised of mostly quartz and feldspar along with smaller amounts of various other minerals. 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.

Granite vs limestone characteristics assist us to distinguish and recognize rocks. 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. We can see from this government report that both limestone and marble are affected by the problem of acid rain. Wipe with a clean damp cloth if dirty.

Meaning no two slabs are alike and each has its own similar yet unique composition. Select limestone with mineral dolomite present as this type of limestone can be polished and is harder than other types of limestone.

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