How to distinguish between natural and artificial stone
Now, the natural stone sold on the market is partly processed by artificial treatment. These stones usually show their true faces in half a year or so. The thickness of these stones is thinned, and the strength is not enough. Therefore, if we add a grid, if we have a deeper color stone, if there is a grid, most of this is the factor. Artificial stone is unsaturated polyester resin as binder, with natural marble or dolomite, calcite, silica sand, glass powder and other inorganic powder and appropriate amount of flame retardant, color and so on, a kind of artificial stone after mixing, casting, vibration, compression, extrusion molding and curing method. Maple leaf red, pink Ma, Guilin red, crabapple red, red Sambo, black sesame, sesame gray, white sesame, Xinjiang red, the flower, Guangxi white, in attractive stone www.zhongjunstone.com
Natural stones are mainly divided into two kinds in daily use: marble and granite. Generally speaking, any texture, called marble, as the main point of the spot is called granite. This is in a broad sense. In a narrow sense, marble refers to the stone produced in Dali, Yunnan. In fact, few stones from all over the country are coming out of Dali.
The two can also be distinguished from the geological concept. Granite is igneous rock, also called acid crystallization plutonic rocks, is one of the most widely distributed rock in igneous rock composed of feldspar, quartz and mica, the composition of silica, about 65% ~ 75%, hard rock compacting. Lava condensation crystallization of igneous rocks is underground magma or volcano eruption called and rock. The content of silica in igneous rocks, the properties of feldspar and its content determine the properties of the stone. When the content of silica is more than 65%, it belongs to acid rock. In this rock, the basic minerals such as feldspar, Xie Changshi and quartz form granular structure, which is called granite.
Marble is a metamorphic rock formed by high temperature and high pressure in the crust of the original rock in the earth's crust. The internal force of the earth's crust contributes to the qualitative change of the original rocks. The change in quality refers to the changes in the structure, structure and mineral composition of the original rock. The new type of rock formed by the metamorphosis is called metamorphic rock. Marble is mainly composed of calcite, limestone, serpentine and dolomite. The main component is calcium carbonate, which accounts for about 50%. Others are magnesium carbonate, calcium oxide, manganese oxide and silica. Because marble generally contains impurities, and calcium carbonate in the atmosphere is affected by carbon dioxide, carbides and water vapor. It is also easy to weathering and corrode, so that the surface will soon lose its luster. The general quality of marble is relatively soft, which is relative to granite. Of course, you don't need to bother about this, because the geological age is calculated by 100 million in the US, the rest of life, this qualitative change is a change of the co..
Of course, the above classification of marble and granite is a narrower definition. Now on the market, the general texture is metamorphic rock, so it is also known as marble. And the crystallized particles of spot spots are also known as granite. In fact, too detailed, it's a geologist, and it's almost all right for interior decoration. Of course, if your stone is used outside, it needs to be classified in more detail because of the worse environment.
Because the natural stone surface has fine holes, so it is weak in the area of pollution resistance. Generally, the processing plant will be treated on its surface. In the interior decoration, the TV table, the table table of window sill, indoor ground and so on are suitable for the use of marble. And the doorsill, kitchen cabinet table, outdoor ground is suitable for the use of granite. The best of the kitchen cabinet table is the use of dark granite.
Now, the natural stone sold on the market is partly processed by artificial treatment. These stones usually show their true faces in half a year or so. The most obvious is the big flower green on the market now, many are dyed, not really big flower green.
Also pay attention to the back of the grid, this situation has two kinds: 1. stone itself more brittle, must add the grid, such as Spain beige. 2., the thickness of these stones is thinned and the strength is not enough. So the grid with more deep color is mostly factor.