Shopping Notes: The Difference between granite and marble

Building decoration, decorative finishes with marble and granite. Marble is mainly used for indoor, granite is mainly used for outdoor, are high-level decorative materials. Marble and granite for indoor and outdoor decorative effect is good, durable, but the high cost, and thus more for public buildings and decoration requirements of high engineering. But in recent years, with the improvement of living standards, people's own living environment of the aesthetic concept is constantly updated, marble and granite are more and more appear in the home decoration.

Stone is divided into two major categories of man-made and natural, where the main introduction of natural marble and natural granite.

Natural marble is the crust of the original rock through the crust in the formation of high temperature and high pressure metamorphic rocks. Belonging to the hard stone, mainly by the calcite, limestone, serpentine and dolomite composition. The main component of calcium carbonate-based, accounting for more than 50%. There are other 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 erosion, leaving the surface soon lost luster. So a few, such as white marble, Ai Yeqing and other pure quality, less stable and durable varieties can be used for outdoor, other varieties should not be used for outdoor, generally only used for interior decoration.

Natural marble can be made of high-grade decorative works of the decorative panels for hotels, exhibition halls, theaters, shopping malls, libraries, airports, railway stations and other public buildings within the interior walls, to the surface, railings, Taiwan, the elevator door face finishes, etc., is the ideal indoor high-level decorative materials. In addition can also be used for making marble murals, handicrafts, daily necessities and so on.

Natural granite is igneous rock, also known as acid crystal deep diagenesis, is the most widely distributed igneous rock, belonging to hard stone, composed of feldspar, quartz and mica, its composition mainly to silica, about 65% ~ 75%. Rock hard and dense, according to the size of its crystal particles can be divided into "Wei Jing", "coarse crystal" and "fine crystal" three.

The quality of granite is determined by mineral composition and structure. High quality granite, crystal grain fine and uniform, mica content less quartz and more, and does not contain pyrite. Granite is not easy weathering deterioration, the appearance of color can be maintained for more than a century, so more for the wall foundation and external finishes. Due to the high hardness of granite, wear, it is also commonly used in high-level building renovation works, for example, the lobby of the ground.

As the granite and marble compared to the texture is more hard and acid, which is more suitable for home decoration in the outdoor balcony, courtyard, guest restaurant on the ground and windowsill. While the marble can be used for bar, cooking table, dining table.

From：granite