How to identify limestone and granite
At present, the common market for indoor decoration and natural stone variety. But according to the known materials on the market, only divided into two categories: marble and granite. Several kinds of limestone, dolomite and marble marble; granite, diorite, diabase, granite gneiss (collectively referred to as the individual businesses of sandstone also known as granite). Then according to the different colors and patterns of the names of different varieties, such as India red, black sand, pearl yellow, blue, white linen. Consumers understand the performance of the stone cannot from the name.
Compared with natural stone, artificial stone has compact structure, light weight, water resistance, erosion, advantages of bright color, small color difference and color. But there are also a few manufacturers in the pursuit of low cost and high profit, the low-grade industrial resin, calcium carbonate, inferior pigment as raw materials, produce some inferior man-made stone this kind of fake, artificial stone general toxic odor, poor processing, easy deformation, visual color cloudy dark, the surface of plastic colloid feeling, the quality is not stable, batch color material, the larger particles, a rough sense of touch, light fastness is not good, generally one or two years began to fade.Marble and graniteAs for the question of the marble and granite, it is difficult for me to answer you, because I am in the rock laboratory to see more natural understandingIf it is a plate, and you can only say that the Raiders do not completely:Granite marble with high hardness, so it is difficult to machining, but the acid resistance, weathering and corrosion. The granite is a distinctive tone, polished finish and no higher than the marble texture, and natural texture of marble is very rich.
(1) artificial stone is lack of natural stone material, although artificial stone can produce a variety of patterns, but there is no natural stone so rich and natural(2) in addition to artificial stone, the other side of the artificial stone has a pattern(3) air bubbles can often be found in artificial stone
A kind of artificial composite stone. With unsaturated polyester resin as binder, with natural marble or dolomite, calcite, silica sand, glass powder and other inorganic powder, and the amount of flame retardant agent and pigments, after mixing, with high pressure sheet.Second kinds of artificial stone, stone is broken, gelatine and stone vacuum mixing, and the use of high voltage vibration mode shaping, made of rock pieces, after cutting into building materials. In addition to retain the natural stone texture, can also add different colors, rich diversity of its color.The third is microcrystalline stone, that is, glass ceramics. The method of making glass, will be a variety of natural stones according to a certain proportion of ingredients, grinding, high temperature melting, cooling and crystallization
