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Consumers can consider the following aspects to identify the quality when buying decorative stone.

Appearance

Common decorative stone is marble and granite.

Generally speaking, marble has fine texture, varied pattern and bright color and easily processed and polished. But low hardness and wear resistance is worse than granite. It is mainly used in indoor floor, wall, windowsill and column surface.

The characteristic of granite is compact structure, low water absorption rate, hard texture, high strength, especially the compressive strength can reach 1200-2500kg per square centimeter. Due to the main component of granite mineral has good acid resistance capacity, therefore it has good acid resistance. And its alkali resistance is also good.

Granite is not easy catamorphism. The appearance and luster can maintain more than 100 years. So it is usually used in external wall decoration. As it has strong acid erosion resistance and its hardness and abrasion resistance is better than marble and other materials, so it is an ideal natural building decorative stone. Compared with marble, granite has fewer choices in color and pattern, but it has more flexibility in texture. At the same time, the whole feeling is more solemn and classic.

Quality

The quality of stone should uniform and integrity, avoid black scars, aberration and so on.

1. Note the composition of stone. Avoid excessive contains iron sulfides, ferric oxide, carbonaceous and clay and other harmful substances,

2. Note the radiation levels of stone.

3. Pay attention to the decorative stone, whether it contains exorbitant coefficient of thermal expansion, heat conduction and electric conductivity mineral composition, to avoid cracks, thermal conductivity and electric dangerous.

Durability

Try to choose the decorative stone with pore distribution uniformity, tiny aperture, low water absorption rate, high hardness and compressive strength. But pay attention to big stone. Through its strength is higher, it will increase the carrying capacity of structural bodies, reduce the strength of house and aseismatic capacity.