Stone materials are mainly divided into two categories, man-made and natural here basically introduces natural marble and natural granite. Natural marble is the lithosphere rocks over crust role in the formation of high temperature and high pressure metamorphic rocks.In hard stone, mainly belong to by calcite, limestone, serpentine and dolomite composition.The main ingredients to calcium carbonate is given priority to, about 50% above.Others are for magnesium carbonate, cao, manganese oxide and silica, etc.Marble, because usually containing impurities, and calcium carbonate by carbon dioxide in the atmosphere, carbide and moisture vapor effect, also easy weathering and dissolution, and make the surface soon lose luster. So a few, such as white marble, and YiYeQing etc qualitative pure and less impurity, the more stable durable varieties can be used in outdoor, other varieties is unfavorable for outdoor, only commonly used in indoor adornment Face.
Natural marble can be made into advanced adornmentEngineering panels, used in hotels, galleries, theatres, bazaar, library, airports, railway stations and other public construction projects within the indoor metope, to face, baluster, ground, sill board, desk, elevator door face of finishes, is the ideal indoor senior adornment Materials.Also could be used to make marble frescoes, handicraft, everydays, etc.
Natural granite is igneous rock, also call acidity crystallization plutonic rock, is the most widely distributed in igneous rock, belong to a hard stone, by feldspar, quartz and micaceous composition, its composition using silica is given priority to, about 65 percent ~ 75%.Rocky hard and close-grained, according to its crystallization granule size can be divided into "wei jing", "coarse grain" and "fine-grain" 3 kinds. Granite quality depends on mineral composition and structure.Quality of granite, crystallization fine grain uniform, mica little content more, but quartz and does not contain pyrite.Granite not easy weathering metamorphism, colour and lustre can keep the hundred years, making it possible to wall basis and external wall decorative surface.Due to the high hardness, wear-resisting, granite so it is also used in high buildings decorate Project, for example, the lobby floor.
Because of granite and marble harder than texture and acid, resulting in household adornment ecorateMore suitable for outdoor balcony, yard, guest restaurant on the ground and windowsill.And marble can be used in the bar, arrange stage, the cupboard mesa。
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