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Marble vs granite: in this article we will try to clarify the difference between marble and granite, two wonderful rocks. Both are natural sandstones extensively used in interior and exterior design, for modern and rustic furniture. They are characterized by high resistance, timeless beauty and versatility: but what is the difference between marble and granite? In order to analyze the granite marble difference, we must focus on three main aspects: geological, chemical and aesthetic difference.

First of all, granite is a volcanic rock formed from molten magma that has cooled slowly over a period of time inside the earth’s crust. This is the reason why granite is mainly made up of silicates, has a grain structure and is harder and more compact. On the contrary, marble is a metamorphic rock mainly made of calcium carbonate which is the result of the sedimentation on the seabed of various materials such as mud, shells, minerals and algae which, over time, following a process of transformation, have become a unique hardened material with a granular and crystalline structure. To simplify the difference between marble and granite, we can say that while marble forms in the sea, granite forms inside the earth’s crust.

Since granite is rich of silicates, it is tougher and more resistant especially to resistant to acid substances, scratches, wear and atmospheric agents. This is the main reason why granite is preferred in outdoors applications or in places where heavy foot traffic is expected. Yet, the processing of granite is not easy at all as it is cut and broken with difficulty and, in fact, its cost is on average higher than that of marble.

The main difference between marble and granite probably lies in the aesthetic properties. On the one hand, granite is characterized by a particularly recognizable “speckled” effect and its color is determined by the variation in the percentage of minerals (such as quartz, mica, feldspar, amphibole, etc.) contained in the stone. Marble is unanimously considered more fascinating due to its irregular veins and varieties of colors based on its impurities.

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