Marble is a common material in people's daily life. Even if they have not used this decorative material, they have seen it. But how much do you know about natural marble? Next, Longmeida Stone Group, a stone engineering expert in the hotel, will help you popularize some common sense about natural marble.
What is natural marble? Let's take a look at its composition. Natural marble is a metamorphic rock formed by the original rocks in the crust under the action of high temperature and pressure in the crust. It is a medium hard stone, mainly composed 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. Marble generally contains impurities, and calcium carbonate is also easy to be weathered and corroded by carbon dioxide, carbide and water vapor in the atmosphere, which makes the surface lose luster quickly. Therefore, in general, marble is more used in interior decoration than outdoor decoration.
Natural marble is dense but not hard, easy to process, carve and polish. The polished marble is smooth and smooth, with natural and smooth texture and high decorative property. Marble has small water absorption and high durability, and can be used for 40-100 years. Natural marble plates and profiled materials are important materials for interior and furniture production.
Compared with granite, natural marble has the characteristics of fine texture and solid organization, bright and clean as a mirror after polishing, multiple textures, stretch and beauty. In addition, the compressive strength of natural marble is high (second only to granite), which can reach 300MPa according to different rock layers, with low water absorption, wear resistance and no deformation.
When it comes to natural marble, many people think of radiation. In fact, this is a misconception for a long time. In fact, natural marble has no radiation hazard and will not cause harm to human body. For authoritative information on marble without radiation, please refer to this article.
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In real life, marble is not only natural, but also man-made. Of course, artificial marble cannot compete with natural stone. So, how can we simply identify natural marble? Longmeida Stone tells you the following simple methods:
1. Look at the texture: each piece of natural marble has a unique natural pattern and color, and each piece is the same if it is artificial.
2. Listening to sound: Generally speaking, the sound of stone with good quality is crisp and pleasant.
3. Light transmission inspection: natural marble has high light transmission, and the back of the marble is illuminated by a lighter or flashlight with high light transmission.
4. There is a simpler way to distinguish artificial and natural marble: drop a few drops of dilute hydrochloric acid, and natural marble bubbles violently, while artificial marble bubbles weakly or even not.
Longmeida's warm tip: The above information is excerpted from the network for learning and exchange. For more information about Longmeida Stone Group or stone products, please visit the official website www.topteck.cn or call 4000-888-428.