a metamorphic rock

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a metamorphic rock

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<p>Natural marble limestone through the crust in the formation of high temperature and high pressure of a metamorphic rock, also known as marble. From the carbonate rock by the regional metamorphism or contact with the formation of metamorphism. Mainly composed of calcite and dolomite, in addition to containing wollastonite, talc, tremolite, diopside, plagioclase, quartz, magnesite and so on. With granular crystal structure, block (sometimes strip) structure. Due to different rock, can form different types of marble, such as pure calcium magnesium carbonate metamorphism  benches for decks built in Cyprus can form calcite marble marble dolomite marble; siliceous limestone metamorphic can form quartz marble, wollastonite marble; Silica limestone can be formed after the formation of graphite marble and so on. According to the structure of the structure, the color is further divided, such as white marble, gray marble, pink marble, fine marble, coarse grain marble, striped marble and so on. </p><p>Usually white and gray marble mostly. Among them, the texture of uniform, fine, white, also known as white marble. It is generally believed that marble can be formed under different temperature and pressure conditions, such as tremolite marble formed in low temperature conditions, the marble marble, forsterite marble is formed in the  what type of nails to use on smart siding high temperature deterioration conditions.</p><p> Its own is also an excellent building materials and art crafts raw materials. Marble hardness is not large, are in the hardness of stone, easy to mining processing, sheet polished after showing decorative patterns or color texture, very beautiful, can be used for indoor and outdoor decoration materials, mining and processing of waste, can be made crafts or Crushed for the production of terrazzo, water brush stone and other high-quality aggregate, a small number of highly dense homogeneous for art  how to install wooden railing on sloped driveway sculpture and decoration. </p><p>Since the marble is basically composed of pure calcium carbonate or magnesium carbonate, it is extremely sensitive to the dissolution of acid-contaminated air, especially in the modern industrial city atmosphere is usually the presence of carbon dioxide in the separation of carbonic acid, and generated from the smoke Sulfuric acid, has been a long period of time, constantly contact with the marble, the erosion of its unclean effect, so that the marble products are affected to varying degrees. Different types of marble on the role of atmospheric erosion resistance is also different, for which people have developed a variety of protection of stone protection agent to enhance the resistance of stone. In any case, in the building decoration and carving, marble is still a more ideal material. China's marble mineral resources is extremely rich, all over  Exterior Porch Floor Tongue And Groove Price the country. Reserves, large variety, ranking the forefront of the world.</p>
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