Natural stone material knowledge

Natural Stone material sort is various, so far more than 1000 documented, according to the chemical composition and crystal structure is divided into Marble and Granite two types.

Marble is to point to contain mineral carbonate more than 50% of metamorphic rocks and sedimentary rocks, and mainly by the original rock carbonate ions and metal cation combined root up salts mineral composition of rock, visual into large decorative pattern texture, its crystal density, high compressive strength (100-200 Mpa), but not big (hardness Sheldon horowitz at 40, 50), wear-resisting, easy ageing, marble, concrete, strict area points, can be reduced to microcrystalline marble and grain of crystal marble two kinds big, crystal is greater than 0.5 mm in diameter called coarse grain (chip), crystal grain diameter less than 0.5 mm called microcrystalline (s) crystal.

Most of the rare Marble countertop from microcrystalline marble series, common are: jazz white, gold flower cream-colored, orange peel red, cream red, brown nets, black and white. The root Microcrystalline marble after detailed burnish and quality of the brilliant hard processing, gloss can reach 100 degrees.

Crystal grain marble common are: white marble, and Spain cream-colored, Italy big flower green, ash cloud, Brazil rosy, mo, etc. Crystal grain than microcrystalline marble marble hardness, wear resistance, but a high gloss than microcrystalline marble is a bit poor, the burnish and brilliant hard meticulous quality processing, gloss can reach 70 90 degrees, grain of crystal marble should pay attention to the maintenance of the more reasonable, otherwise, the surface grain fall off and form apparent bump surface.

Granite countertop commonly known as the granite, belong to igneous rock, originated in granite, visual into little broken decorative pattern design, the main ingredients are silica, accounting for more than 60%, total stone material composition mainly by quartz (silica crystals), mica, feldspar composition, the original rock are the main root silicate with metal cation and anion combined into silicon carbon rock salt mineral composition of rock, granite crystals and density, bulky high compressive strength (120-300 Mpa), hardness Sheldon horowitz at (75, 110), the high quality of the brilliant hard meticulous and granite treatment, a gloss of 110-120 degrees, but the only fly in the ointment was unavoidably have sunken into the small of hemp dot. Granite although structure compact, bibulous rate is low (0.1%, 0.7%), but it belongs to acidic rock, hydrophilic, so granite ground after washing, stone by stone reveal the place in between there will be significant water mark. Granite can be concluded to grain of grain granite and flocculent grain granite two kinds big, architectural community will often some of sedimentary rock into the marble of sandy, but stood in the property management and maintenance of Angle, should be included in the granite class, common sandy sedimentary rocks are: crystal white, white sand, wood grain red, domestic big flower green, etc.

Common grain granite chip are: white, red, sichuan red Indian, evergreen, brown drilling, sands. Black

Grain of grain granite of quartz crystal very hard, but feldspar crystal softer, plus a mica formed hemp dot, such as no reasonable care, they will quickly become jagged, even into thick the granite.

Common flocculent grain granite: spray white, yellow, illusion, "rainbow PND tail-on red, red, hot spring green, watercolor. Flocculent grain granite and marble and granite hard more colorful, grinding and polishing the meticulous will be fine after the dimples shape, concave round, make the ground present a far see clear, look nearly slightly hazy, give a person a kind of romantic emotional appeal. Flocculent quartz grain granite uneven distribution, the less the more part of the quartz easy to wear, such as no reasonable maintenance, ShiMian will soon become irregular waves.