Architectural decoration, decorative finishes, stone marble and granite main. Mainly used for indoor marble, granite is mainly used outdoors, are senior finishes materials. Marble and granite used for indoor and outdoor decorative finishes effective, durable, but the high cost, which are used for public buildings and decoration of high-level projects. However, in recent years, with the improvement of living standards, people living environment for their own aesthetic sense is continually updated, marble and granite are also increasingly appear in the decoration in the home.
Stone is mainly divided into two major categories of man-made and natural, here introduces the natural marble and natural granite.
Natural marble crust Zhongyuan some rocks after the earth's crust in high temperature and high pressure metamorphic rocks formed. Belong to the hard stone, mainly by calcite, limestone, serpentine and dolomite components. The main components of calcium carbonate-based, accounting for more than 50. Other magnesium carbonate, calcium oxide, manganese oxide and silicon dioxide and so on. Because marble is generally contain impurities, and calcium carbonate in the atmosphere by carbon dioxide, carbon, the role of water vapor, but also easy to weathering and erosion due to surface soon lose their luster. So a handful, such as white marble, such as Ai Yeqing pure quality, the relatively stable impurities less durable species can be used outdoors, other varieties should not be used outdoors, generally used only for interior decoration surface.
Natural marble decoration works can be made of high-level panel of decoration for the hotel, exhibition halls, theaters, shopping malls, libraries, airports, stations and other public works within the interior walls, to the surface, railings, floors, windowsills board, services Taiwan, elevatorÃÅÁ³of finishes and so on, is ideal for high-level indoor decorative materials. In addition can also be used in the production of marble wall paintings, crafts and daily necessities.
Natural granite is igneous rock, also known as acid crystallization Plutonic is the most widely distributed of igneous rocks in a rock, is a hard stone, from feldspar, quartz and biotite composition, its components to silica-based, accounting for about 65 ~ 75. Dense rock hard, according to the size of crystalline particles can be divided into 'pegmatite', 'coarse-grained' and 'fine grain' of three.
Granite decided the quality of mineral composition and structure. High quality granite, crystal thin and uniform particles, mica and quartz content of less more, and do not contain pyrite. Not easily weathered granite changed the appearance of color can be maintained for more than a hundred years, so more for the wall base and external wall finishes. As the granite higher hardness, wear, and they are also commonly used in high-level architectural decoration, for example, the lobby floor.
Granite and marble as a result compared to a more rigid texture and acid-resistant, so at home decoration more applicable to the outdoor terrace, garden, restaurant off the ground and the windowsill. The marble can be used to bar, restaurant and Taiwan,²Í¹ñdesk.
1. granite materials: granite stone is no color stripes, most of the only spots of color, there is a solid color. One more fine mineral particles, the better to illustrate solid structure.
2. marble sheet: marble material mineral composition is simple and easy processing, most delicate texture, mirror effect is good. The drawback is the soft texture than the granite, was hard hit when heavy objects vulnerable to injury, light-colored stone susceptible to pollution. Shop as much as possible to the marble color menu, select the table from time to time decorative cloth stripes better. Other selection methods can refer to the selection method of granite.
Types of Stone
Stone types commonly used today is divided into four categories: sedimentary, metamorphic, igneous rock and man-made stone.
First, sedimentary rock
Sedimentary rock by glaciers, rivers, wind, marine organisms and plants out of the debris out of the formation of sedimentary rock deposits, and after millions of years of high temperature and high pressure from consolidation.
1. Limestone
The main mineral composition for the calcite. Mineral particles and crystal structure of rare, smooth surface, showing the small granules. Different hardness, and some dense limestone can be polished. Colors are black, gray, white, yellow and brown. Limestone formation with lime water, they are named.
2. Sandstone
By quartz particles (sand) to form, structure, stability, and usually were light brown or red, mainly silicon, calcium, clay and iron oxide.
3. Hectorite
Formed from a variety of talc, it is soft. It is a wear-resistant mineral dense and difficult to produce stains.
4. Fossils
With marine shellfish, natural plant fossils, is considered limestone.
5. Travertine (Ulva)
Usually cream-colored or pink, by the deposition of calcite from hot springs. Due to flow from the stones in the formation of many small holes through which these small holes commonly used synthetic resin or cement to fill up, otherwise require a large amount of conservation work. Are limestone and marble.
Second, metamorphic rocks
In high temperature and high pressure metamorphic rocks and minerals under a mixture of natural stone from a degenerating into another stone. Qualitative change may be re-crystallization, texture or color change to change.
1. Marble
Recrystallization is limestone, limestone under high temperature and pressure soft and minerals contained in changes in the formation of re-crystallization of marble. Main component is calcium and dolomite, many colors, usually a clear pattern, a lot of mineral grains. Mohs hardness between 2.5 to 5.
Marble divided into three categories:
Dolomite: magnesite (magnesium carbonate) content above 40
Forsterite: magnesite (magnesium carbonate) content of 5 to 40.
Calcite: magnesite (magnesium carbonate) content of less than 5
2. Slate
From clay rock, sedimentary shale (sometimes by the quartz rock) formation of metamorphic rocks, minerals, fine particles, thin and brittle, usually black, gray or green.
3. Serpentine
Its named after snakeskin pattern seems, the most common color is green and brown. Mohs hardness of 2.5 to 4. Containing a large number of magnesium, derived from igneous rock. Recrystallization and diamond polishing the effect of sometimes poor.
Third, igneous
Igneous rocks formed by volcanic material, such as magma. Subsurface liquid magma cooled, solidified. Gas and liquid infiltration of minerals and rocks to form a new crystal and a variety of colors.
Granite
Mainly by quartz (35), feldspar (45) and potassium formed, usually with deep color. Even contain calcite also very small. Texture is very hard, conservation is much easier than marble, but there are still holes, and would create stains. In accordance with the quartz, mica and feldspar mixed different than out, is divided into different types of granite. Black granite that is anorthite, which contain quartz, feldspar rare, and its composition is different from the real granite.
Fourth, artificial stone
Artificial stone is made from a mixture of non-natural, such as resins, adhesives cement rubble.
Terrazzo
Marble and granite fragments embedded in the cement mixture.
Rally gathered stone or stone:
Colored marble fragments embedded in the resin mixture.
Cultural stone or imitation stone
Resin mixture on the paint or paint mixing, looks like marble.
