It is believed that everyone knows about marble. Natural marble has a dense texture but little hardness. It is easy to be processed, sculpted and polished, and polished. Natural marble is a type of metamorphic rock formed by high temperature and high pressure in the earth's crust. So how much do you know about imported natural marble? The price of imported natural marble is not expensive, let's take a look.
Introduction of natural marble
Natural marble is a type of metamorphic rock formed by high temperature and high pressure in the earth's crust. It belongs to medium hard stone and mainly consists of calcite, limestone, serpentine and dolomite. Its main component is calcium carbonate, accounting for more than 50%. Others include magnesium carbonate, calcium oxide, manganese oxide, and silicon dioxide. Because marble generally contains impurities, and calcium carbonate in the atmosphere by the role of carbon dioxide, carbides, water, but also easy to weathering and erosion, and make the surface lose luster quickly. Therefore, a few, such as white marble, AI Yeqing, etc., which are relatively stable and durable and have less impurities, can be used outdoors, and other varieties are not suitable for outdoor use. They are generally used only for interior decorative surfaces. The main varieties are: cloud gray marble, colored flower marble and so on.
main feature
The natural marble texture is compact but not hard enough to be easily processed, sculpted, polished and polished. After polishing, the marble is smooth, smooth, smooth and highly decorative. Marble has a low water absorption rate and high durability and can be used for 40-100 years. Natural marble plates and profiles are important materials for indoor and furniture production.
Natural marble has fine texture and solid texture, polished and polished as a mirror, the texture more than granite stretch, beautiful. Compressive strength is higher (after granite), according to the different rock formations, up to 300MPa, water absorption is small, wear-resistant deformation and so on.
Radioactivity: In addition to the high requirements for the ruggedness and environmental friendliness of marble plates, marble furniture also has strict controls on the radioactivity of stone materials. For a long time, people have mistakenly thought that marble furniture will have radiation, and there are some concerns when buying. In fact, the radioactivity of natural marble is very low, and it will not cause any harm to the human body. The high-activity radioactive materials are artificial marble furniture.
Natural marble identification
The marble house sold on the market is divided into natural marble and artificial marble. Natural marble is divided into high quality marble and inferior marble. The choice of marble furniture must first understand the difference.
Each piece of natural marble has a unique natural pattern and color. The high-quality marble furniture will use a single piece of stone material to match the ratio of materials in different parts. There will be a large area of ​​natural lines in the main area, while the trim will be used to embellish the back of the chair, stigma and other parts. In the case of inferior furniture, scrap is used when preparing the material, and the surface is not changed.
Four different types of natural marble:
1. Look at the texture: Each piece of natural marble has a unique natural pattern and color.
2, listen to the sound: In general, good quality stone knocking sound crisp and sweet.
3, check the light: natural marble high transmittance, lighter or flashlight on the back of the marble, high transmittance.
4. There are simpler tricks to identify artificial and natural marble: a few drops of dilute hydrochloric acid, vigorously foaming of natural marble, and weak or even foaming of artificial marble.
Imported natural marble prices (for reference only)
Editor's summary: The information about the introduction of natural marble and the price of imported natural marble is introduced here for everyone. I hope this article will help everyone. If you still have something you don't understand, you can leave a message to Xiaobian at the bottom. We will answer your questions as soon as possible.
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