Question:

What kind of stone are there

What kind of stone are there

Answer:

Granite is a kind of igneous magmatic rock, is due to the formation of the surface of the rock, gravel by weathering, slowly moving to the bottom of the deep ditch, again and again crustal movement, and slowly swallowed them to the center of the heart and was ultra-high temperature melt. Because the density of the magma is lower than that of the surrounding rock, it is gradually pushed upwards and cooled to form a new 3-D crystal (igneous rock). But also because it is 3-D crystal, so the texture is small, the pattern has three-dimensional and crystalline feeling, and even some granite in the light irradiation, will emit a sparkling dazzling luster. Its main ingredients are feldspar, quartz and mica, etc., the general durability of 200 years.
Marble is a carbonate metamorphic rock, was originally the seabed of the lime mud slowly deposited, crystallization and become limestone; case of the formation of high pressure and high temperature changes, the most significant is the crystallization of the larger hardened, the formation of the so-called marble The Its texture due to the formation of impurities contained in the uneven, and by the formation of more active large-scale totem changes in the formation of feeling, forming a landscape like natural marble lines. The general durability is 150 years.
Slate is a plate-like structure, basically no recrystallization of the rock, is a metamorphic rock, the original rock is muddy, silty or neutral tuff, along the plate direction can be stripped into thin slices. The color of the slate varies depending on the impurities it contains. The iron is red or yellow; the carbonaceous is black or gray; the case of calcium is bubbled, so it is generally classified as its color. Green slate, black slate, calcareous slate and so on.
Sandstone is a sedimentary rock, the stone is coarsely loose, may be loose when the moisture deformation; but because of the unique rough texture of the depression, closer to the rough feeling between the mountains, it is more often used for wall decoration.

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