What is the composition of the stone?

The composition of the stone is as follows: The main components of the stone are calcium carbonate CaCO3, calcium hydroxide Ca(OH) and calcium oxide CaO.

The most important use of stone in modern life is concrete. Making cement, even making concrete with cement, sand, pebbles or gravel, is all stone.

sedimentary rock

Sedimentary rocks cover 66% of the surface and are the main rocks on the surface.

This kind of rock is layered, and the first kind is deposited in the lower part, which is older; The higher the level, the newer the times, which is called the law of overlapping layers; In igneous rocks, there are mostly no fossils.

metamorphic rock

From the original igneous rock or sedimentary rock, the structure or organization of the original rock can be changed by the influence of high temperature, high pressure and hydrothermal solution caused by crustal movement or magmatic intrusion, such as from limestone to marble; Shale metamorphic slate; Quartzite changed from sandstone, etc.

igneous rock

The temperature and pressure inside the earth are very high, and all components (minerals) are in a molten state, which is called magma. Igneous rocks, such as basalt and granite, are formed by magma invading the crust or flowing out of the surface, cooling and solidifying. Igneous rock is the most primitive of all rocks.

Stone:

Stone generally refers to a small rock mass that falls off when a large rock mass encounters an external force. Most of them are attached to the surface of large rock mass, generally in block or oval shape, with rough or smooth appearance, hard texture and brittle hardness. It can be used to make stone tools and collect stone mines. Thousands of years ago, our ancestors made fires with stones. Stone is generally composed of calcium carbonate and silicon dioxide.