Natural stone refers to the general term for mining from natural rock masses and processing into block or plate-like materials. The decorative stone used for building decoration is mainly composed of marble and granite.
Marble refers to metamorphic or sedimentary carbonate rocks. Its main chemical composition is calcium carbonate, which accounts for more than 50%. It also contains magnesium carbonate, calcium oxide, manganese oxide and silicon dioxide. Marble is a hard stone.
The color of the marble plate is related to the composition. The white color includes calcium carbonate, magnesium carbonate, purple manganese, black carbon or asphaltene, green diamond, yellow chromate, reddish-brown, purple, brown-yellow manganese and iron oxide water. Compounds, many colors contain a variety of impurities of different compositions. Pure white marble is relatively simple, but most marbles are two or more components mixed together. In various colors of marble, dark red and red are the most unstable, followed by green. The single white component is relatively stable, not easily weathered and discolored, such as white marble, marble contains chemically unstable red, dark red or smooth gold particles, will make the marble structure loose, will produce a qualitative change under the effect of sunlight . In addition, marble generally contains impurities, and the main component is calcium carbonate. In the atmosphere, it is affected by carbon dioxide, sulfides, moisture, etc. It is easy to be eroded, loses its surface luster and is weathered and cracked. Therefore, except for a few, such as white marble, AI Yeqing, etc. The more stable and durable varieties with less impurities and more impurities can be used outdoors, and the other varieties should not be used outdoors. Generally, they are only used for interior decoration. Because marble is hard stone, the hardness of the plate is low. If it is used on the ground, the polished surface is easy to lose, so marble plates should not be used on the ground as much as possible.
Because of the high price of marble plates, high-grade decorative materials are commonly used in hotels, exhibition halls, theaters, and shopping malls. Indoor walls, columns, railings, sill plates, service desks, and other parts of public buildings such as airports and stations. Nowadays, there are also residential marble slabs with relatively high decorative grades as the ground decoration of the living room, which is noble and elegant. However, in residential decoration, few marble plates are used for wall decoration, mainly because of the high technical requirements for the construction and operation of decorative marble. In addition, a variety of marble ornaments can also be produced, such as murals, screens, seat screens, hanging screens, wall hangings, etc., for interior decoration and decoration, and also for inlaying flower pots and inlaid high-grade hardwood carved furniture.
The marble veneer plates are mirror polished plates after grinding and polishing. The surface is bright as a mirror, glittering and translucent, and the quality is delicate and delicate. Therefore, the color pattern of the surface is mainly taken into consideration in coordination with other materials in the room.
Natural granite is a magmatic rock with aluminosilicate as its main component. Its main chemical composition is alumina and silica, and a small amount of calcium oxide, magnesium oxide, etc., so it is an acidic crystalline rock. Belong to hard stone.
Granite has a hard texture, acid and alkali resistance, corrosion resistance, high temperature resistance, light resistance, cold resistance, abrasion resistance, durability, and the appearance of color can be maintained for more than 100 years. In addition, the granite plate is rich in color, the lattice pattern is even and meticulous, and after being polished, it is bright as a mirror, and the texture is strong, and there is a magnificent and noble decorative effect. The thin plate has a simple and solid decoration style.
As granite is not easily weathered and deteriorated, it is mostly used for wall bases and exterior wall finishes, and is also used for interior wall surfaces, cylindrical surfaces, windowsills, etc. Because granite has high hardness and wear-resistance, it is also commonly used in the ground of high-rise architectural decoration projects, such as hotels, restaurants, and auditorium halls.
The degree of surface processing of granite slabs is different, that is, their surface texture is not the same, and care should be taken when using them. General mirror plate and fine-smooth plate surface smooth and smooth, delicate texture, used for indoor walls and floors, but also for some of the external wall decoration of the building, after the smoke, smoky, shadow reflected, suddenly full of grand feeling . Rough surface board rough texture, coarse expansion, is mainly used for outdoor wall foundation and wall decoration, there is a simple, return to nature intimacy.
As for the selection of the tone patterns of granite slabs, the decoration requirements of the entire building should be considered and coordinated with the colors of other parts of the material.
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