These fire-grown rocks once formed a hot and molten mass called magma, which the gradual cooling of magma turned them into hard and solid rock. Therefore, the lava that erupts from the crater of the volcano and flows on the surface of the earth, quickly cools and hardens and creates an igneous rock.um adipiscing sem torquent parturient aliquam aliquet curabitur ullamcorper a parturient cubilia suspendisse curabitur quis ridiculus ut maecenas a cum porttitor blandit consectetur egestas.Sem etiam vestibulum a suspendisse sit sociosqu massa urna elit. Bibendum egestas elit fames adipiscing scelerisque a est amet a nisi volutpat pharetra sed a eget nunc sapien per.
- In 1850, Henry Clifton Surby (1826-1908) prepared the first thin section of rocks for microscopic study.
- At the beginning of 1861, the method of chemical classification of stones was invented, and in the late 19th and early 20th centuries, some methods of chemical display and finally the chemical classification of stones appeared.
Khara stone or granite is a type of internal igneous rock, for this reason, its texture has medium to coarse grains and, except for some minerals, it has quartz and feldspar. Its color varies from pink to deep gray and even black depending on the mineral and chemistry of the stone. The interesting point is that this stone is one of the heaviest stones with a density of 2.75 grams per cubic centimeter.
Granite is one of the strongest and hardest stones, so it is widely used as a building material. The resistance of this stone to corrosion has made it widely used in laboratories. The high resistance and hardness of this stone makes it possible to make sheets with a thickness of only a few millimeters from this stone.
