Marble, marble of main component is calcium carbonate, but the color Parallel Shaft Gearbox white marble slabs of the marble is associated with contains minerals, main component is calcium carbonate is white, copper green or blue, cobalt containing the pale red, a rosy, manganese content in the iron yellow, containing strontium is shallow blue, including graphite in black, colored.
Granite: the color of stone material mainly depended on mineral composition, content of quartz, feldspar, more commonly, stone color light. When the other mineral content of gray series is formed more granite and gray granite series.
Among various kinds of mineral, feldspar, plagioclase, orthoclase) white marble mosaic affected by the color of the variety of granite, plagioclase commonly make stone with a white, grey, orthoclase make stone red, red stone color depth is also related to the amount of potassium feldspar, main components of potassium is a beautiful bright red granite. Quartz mostly white or milky white in the granite, quartz greater transparency, the stronger the absorbance, less light, stone gloss is low, sometimes also with quartz color such as white, yellow, purple.
Predominantly dark mineral black granite another kinds of granite, one of the good quality product is pure black or dark green, and has a high gloss, such as: xinfeng black. Biotite and white mica for stone is a kind of harmful minerals, mica content can make the stone material is difficult to polish, polishing by mica cleavage are formed when matt pitting, or because of mica flake form, reduces the beautiful degree of stone material surface.
In general, the color of the granite deep, single crystal mineral pietra gray marble degree is high, small particles, glossiness is high also.
Stone material hardness with mohs hardness as the calculating unit, mohs hardness in 6 to 7 belongs to hard stone, granite, for example, mohs hardness in 3-5 belongs to hard stone, marble, for example, mohs hardness in 1 or 2 as the soft stone, such as limestone and dolomite.
Big li shi: because marble is general contains impurities, and calcium carbonate by carbon dioxide in the atmosphere, carbide, the effect of moisture, also easy to weathering and dissolution, and make the surface soon lose its luster. So a grey marble slab few, such as white marble, YiYeQing pure and less impurity, more stable and durable quality varieties can be used in outdoor, other varieties should not be used in outdoor, typically used for interior decoration. Mohs hardness in 3-5.
Granite: granite marble high hardness and difficult to machining, but the acid corrosion, weathering resistance. Not easily weathered metamorphic, appearance can keep more than one hundred, with so much to wall and exterior wall facing. Because of the granite high hardness, wear resistance, so often used in architectural decoration engineering, for example, the ground of the lobby. Mohs hardness in 6-7.