Limestone on the other hand is basically just a huge pile of non interlocked but cemented calcite.
Which is harder granite or limestone.
Both have been used as key building blocks over the centuries.
The igneous rock is comprised of mostly quartz and feldspar along with smaller amounts of various other minerals.
Marble is relatively hard but not as hard as granite.
Although the science behind the formation of these types of rocks is complex you can.
The hardest and densest construction grade stone material granite can be polished smooth honed flat or left in a naturally gauged state.
Only the harder denser types especially those quarried in france and germany can be installed in the kitchen.
They are however very different in their composition appearances and uses.
This means limestone can be bought in everything from crushed limestone which contains small stones of varying sizes all the way up to large cut flat pavers that are 24 inches by 36 inches.
Limestone generally ranks at around a 3 on the scale while marble falls between 3 and 4.
Limestone is one of the most versatile stones as it is always available in various sizes textures and soft colors giving a luxurious look and adding warmth to your kitchen.
These merely indicate fabrication ability which is based on the materialĂs level of hardness.
Size is an area where gravel and limestone diverge because limestone is a single source product.
Granites have large amounts of quartz sio2 and other hard silicate materials quartz 7 mohs.
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.
An example of the hardness of a granite countertop can be seen in the fact that a knife blade will not scratch the surface.
Granite and limestone are two of the most common and widely distributed rocks on earth.
Granite is quite hard to handle or to scratch by nails whereas a limestone can easily identified a it reacts to acids like hydrochloric acid.
Marble basically classifies into four groups which include.
Groups a b c and d.
Granite is a very hard granular crystalline igneous rock which consists mainly of quartz mica and feldspar and is often used as building stone limestone is a sedimentary rock composed mostly of calcite and aragonite which are different crystal forms of calcium carbonate 1 2 history 1 2 1 origin.
Granite comes in at a 6 to 7 on the mohs scale meaning it is relatively hard.
Marble and limestone lie at the opposite end of the hardness scale from granite.