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Not all stone is is not created equal
Granite is classed as an igneous stone formed above and below the Earths surface , these stones are commonly believed to have solidified from molten rock called magma under extreme pressure.trapped in small pockets these eventually cool and the magma becomes dense igneous rock , above the surface the magma is known as lava these cool much faster forming a different variety of igneous rock or lava rock Basalt. Granite has become extremely popular in recent years for flooring and predominantly worktops, splash backs, wall tiles and external buildings generally Granite is a good choice for choice for its relative ease of maintenance, with good chemical resistance, acid and alkali Granite is of high density, 6 -7 on the MOHS scale of hardness and is therefore fairly hard wearing and relatively stain proof, due to it's low porosity some granite should be sealed i have seen a very porous granite darken with just water applied that has penetrated.
Buyer beware though that not all Granites are true Granites, (although a geologist would possible disagree) some are basalt being labelled granite by suppliers especially some of the blacks coming out of Asia some are even dyed , these basalts are susceptable to staining and even acid etching because they may contain small fragments of impurities Calcite probably picked up on the surface, restoration is almost not economical to undertake and can be extremely difficult, so please check with your supplier first.
Given all the above, as with all materials, damage can occur such as chips or scratches or just general wear and tear. Incorrect sealers applied or poor cleaning products can cause dulling. Granite flooring, if poorly installed, may need levelling of uneven tile sets if you are not happy with the finish.
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