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Granite is a standard and widely occurring type of intrusive, felsic, igneous rock. Granite has a medium to coarse texture, sometimes with some individual crystals larger than the groundmass forming a rock known as porphyry. Granites can be pink to dark grey or even black, relying on their chemistry and mineralogy. Outcrops of granite are inclined to form tors, and rounded massifs. Granites generally occur in circular depressions surrounded by a range of hills, formed by the metamorphic aureole or hornfels.

Granite is an igneous rock and is formed from magma. Granitic magma has many potential origins but it must intrude different rocks. Most granite intrusions are emplaced at depth within the crust, usually better than 1.5 kilometers and as much as 50 km depth within thick continental crust. The origin of granite is contentious and has led to varied schemes of classification. Classification schemes are regional; there’s a French scheme, a British scheme and an American scheme. This confusion arises because the classification schemes define granite by different means. Usually, the ‘alphabet-soup’ classification is used because it classifies based mostly on genesis or origin of the magma.

Historical Uses of Granites

Granite is sort of always massive (lacking inner buildings), hard and hard, and therefore it has gained widespread use as a development stone. The Red Pyramid of Egypt, named for the light crimson hue of its uncovered granite surfaces, is the third largest of Egyptian pyramids. Menkaure’s Pyramid, was constructed of limestone and granite blocks. The Great Pyramid of Giza accommodates an enormous granite sarcophagus fashioned of “Red Aswan Granite.” The principally ruined Black Pyramid dating from the reign of Amenemhat III once had a elegant granite pyramidion or capstone, now on display in the principle hall of the Egyptian Museum in Cairo.

Many large Hindu temples in southern India had been made of granite. There’s a large amount of granite in these structures. They’re comparable to the Nice Pyramid of Giza

Granites Use in Present age

Granite has been extensively used as a dimension stone and as flooring tiles in public and commercial buildings and monuments. With rising amounts of acid rain in parts of the world, granite has begun to supplant marble as a monument materials, since it is much more durable. Polished granite can be a popular choice for kitchen countertops due to its high durability and aesthetic qualities.

Engineers have traditionally used polished granite surfaces to determine a aircraft of reference, since they’re comparatively impervious and inflexible. Sandblasted concrete with a heavy aggregate content has an appearance just like tough granite, and is usually used as a substitute when use of real granite is impractical. Because of the particular rarity of the granite, the best stones can price as much as US$1,500.

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