CS series spring cone crusher is modern high performance crusher,which is produced by shanghai SBM, a famous professional mining machine manufacturer and supplier in the world. It integrates high swing frequency, optimizing cavity and reasonable stroke into the crusher based on laminating crushing principle and more crushing and less grinding concept design R & D. also, it is designed in the foundation of our company's introducing, absorbing foreign technology plan, according to customer's demand.
Granite is a common type of intrusive, felsic, igneous rock which is granular and phaneritic in texture. This rock consists mainly of quartz, mica, and feldspar. Occasionally some individual crystals (phenocrysts) are larger than the groundmass, in which case the texture is known as porphyritic. A granitic rock with a porphyritic texture is sometimes known as a porphyry. Granites can be pink to gray in color, depending on their chemistry and mineralogy. By definition, granite is an igneous rock with at least 20% quartz by volume. Granite differs from granodiorite in that at least 35% of the feldspar in granite is alkali feldspar as opposed to plagioclase; it is the alkali feldspar that gives many granites a distinctive pink color. Outcrops of granite tend to form tors and rounded massifs. Granites sometimes occur in circular depressions surrounded by a range of hills, formed by the metamorphic aureole or hornfels. Granite is usually found in the continental plates of the Earth's crust.
Granite is one of the most widely distributed rocks in magma. The main minerals are quartz, feldspar, mica and a small amount of dark minerals, which belong to the crystalline structure and block structure. Granite has various colors, such as dark, blue, light gray, black, and purple. The granite color is determined by the feldspar' color because feldspar is in large proportion in granite. The granite is hard and dense and high compressive strength, which is between 120~250MPa, and density is between 2600~2700kg/m3, small porosity (0.19%~0.36%), low water absorption rate (0.1%~0.3%), good wear resistance, high durability, service life is up to several decades to hundreds of years.
Granite is a natural source of radiation, like most natural stones. However, some granites have been reported to have higher radioactivity thereby raising some concerns about their safety.
Granite has been extensively used as a dimension stone and as flooring tiles in public and commercial buildings and monuments.
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