Granite is igneous, also called acidic crystalline plutonic, is the most widely distributed rock in Igneous rocks, composed of feldspar, quartz and mica, its composition is mainly silica, accounting for $number, rock mass hard and dense. The so-called igneous rock is an underground magma or volcanic eruption of lava condensation crystallization from the rocks. The content of silica in igneous rock and the properties and content of feldspar determine the nature of the stone. When the content of silica is more than 65%, it belongs to acidic rock, which is called granite when the basic minerals such as orthoclase, plagioclase and quartz form crystals.
Marble is a metamorphic rock formed by the action of high temperature and high pressure in the Earth's crust. The internal force of the Earth's crust forces the original various kinds of rock to change the process of mass. The change of quality refers to the change of structure, tectonics and mineral composition of the original rock. A new type of rock formed by qualitative change is called metamorphic rocks. Marble mainly consists of calcite, limestone, serpentine and dolomite. Its main components are mainly calcium carbonate, accounting for more than 50%. Others are magnesium carbonate, calcium oxide, manganese oxide and silica. Because marble generally contains impurities, and calcium carbonate in the atmosphere by carbon dioxide, carbide, water vapor role, but also easy to weathering and dissolution, and the surface quickly lost luster, marble general properties are relatively soft, which is relative to granite.
1. The main component of marble is calcium carbonate, some marble contains a certain amount of silica, and some do not contain silica dioxide.
2.Has the streamline strip pattern, the texture is more exquisite is the marble
3.Granite strength is larger than marble
4.Marble is not suitable for outdoor, think because it is softer, more easily polluted.
5.Marble can not be made into the fire board, marble in the high temperature will become ash.
1. The main component of granite is silica, consisting of feldspar and quartz, which is mixed with a small amount of mica and trace minerals.
2.Has the crystallization granular or the floc spot is the granite.
3.Marble decorative more than granite color
4. Granite is more rigid, easier to maintain than marble, and suitable for outdoor use.
5.Granite can be made into fire board