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Granitoids are a group of intrusive rocks in which minerals like Feldspars and Quartz predominate. But what are intrusive igneous rocks? They are rocks that are formed when the magma solidifies within the earth's crust. These rocks were much appreciated since ancient times; an example are the different statues found in Egypt. We also know that this material was also used in architecture: in the famous pyramid of Cheops, for example, the walls, floors and ceiling of the King's Chamber are made entirely of red granite from Aswan. Even today these rocks are often exploited in the building field. They are in fact very appreciated both for their charm and for their characteristics. They are very hard rocks (hardly scratched) but also very resistant to acids and abrasion. However, these properties make it difficult for both their extraction and their processing. To date, extraction is facilitated by more modern and effective methods such as.