What is natural stone?
2023-11-27 14:38
1. Natural stone is mainly divided into two types in daily use: marble and granite. Generally speaking, anything with texture is called marble, while those with speckled spots are called granite. This is broadly speaking. Narrowly speaking, marble refers to the stone produced in Dali, Yunnan. In fact, there are not many stones that have been sorted out in various places now.
2. Marble and granite can also be distinguished from geological concepts. Granite is an igneous rock, also known as acidic crystalline plutonic rock, which is the most widely distributed type of rock in igneous rocks. It is composed of feldspar, quartz, and mica, with silica as the main component, accounting for about 65% to 75%. The rock is hard and dense
3. The so-called igneous rock is a rock formed by the condensation and crystallization of underground magma or volcanic lava. The content of silica in igneous rocks, the properties of feldspar, and their content determine the properties of stone. When the content of silicon dioxide is greater than 65%, it belongs to acidic rocks. When basic minerals such as orthoclase, plagioclase, and quartz form crystals in this rock, it has a granular structure and is called granite.
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