What is granite? Detailed answer

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What is granite? Detailed answer

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What is granite?

Do you know that all materials on Earth rest on powerful granite slabs? Granite is a hard rock that is one of the main materials that form the outer part of the earth's crust.

The name "granite" comes from the word "granum", meaning "grain" in translation. This, however, as you understand, is not about grains of wheat or rye. Grains are called crystals of quartz, mica, feldspar, hornblende and other minerals that are constituents of granite. Granite color may vary. Most often it has a grayish or pinkish color, but the presence of impurities in it can change its color.

Granite is a volcanic rock. As a rule, it is formed in the depths of the Earth when molten magma cools. Magma is a mixture of various minerals that looks like dough. Granite is formed in mountainous regions. Rocks on the surface of the Earth, like a huge blanket, prevent magma from cooling too quickly.

Granite is outside only when the outer covers are "weathered", that is, they are destroyed under the influence of water, wind, ice, or as a result of movements in the earth's crust, when granite blocks are pushed to the surface. After that, however, the granite itself undergoes weathering. The feldspar crystals are destroyed first, turning into a mixture of clay and salts. Only quartz is able to resist the influence of the forces of nature.

Over time, only fragments and mineral dust remain from the giant granite rocks, which, together with the remains of living organisms, form the soil.

Granite is one of the most durable building materials. He goes to the construction of facades of large buildings, monuments, as well as the manufacture of gravestones and tombstones. The ancient Egyptians used it to build temples and the famous pyramids.

Author: Likum A.

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