Decorative Stone Shop skills

When consumers buy decorative stone, often do not know how to identify its quality. Marble, landscaping stone, slate is a decorative stone in three main categories, which include natural decorative stone more than 99% of the species.
Choose decorative stone look Appearance:
Commonly used decorative stone mainly marble and granite.
Generally, marble texture and delicate, pattern varied, colorful, easy processing and finishing, but low hardness, poor wear resistance than the granite. Mainly used for interior floors, walls, window sills and cylinder finishes.
Granite is characterized by compact structure, water absorption is very small, hard, high strength, especially compressive strength of up 1200-2500kg / cm. Since the main mineral composition of stone tile strong resistance to acid, therefore extremely corrosive acid, alkali erosion class also has a strong resist force. http://www.stonegroupon.com/
Granite difficult to weathering deterioration, the appearance of color can be kept for more than a century, so much used for exterior finishes. In the air because of its strong ability to resist acid, higher than the marble hardness, wear resistance, the durability of marble, terrazzo and other stone can not, and therefore is an ideal architectural natural stone. Compared with marble, granite and less variation in color and pattern, but there are more flexible in terms of the texture changes, but appears to be more solemn and classical in the overall feeling.
Quality depends on the selection of decorative stone:
Stone material should be uniform and complete avoidance dark crack, black scar and color problem.
1. Note that the composition of the stone, avoid products containing excessive iron sulfide, iron oxide, and carbonaceous clay and other harmful substances;
2. Note that the radiation level stone;
3. Note the stone whether they contain mineral ingredients high coefficient of thermal expansion, thermal and electrical conductivity, in order to avoid cracks, thermally and electrically conductive dangerous.
To consider the selection of decorative stone Durability:
We should try to use the stone pore distribution, small aperture, low water absorption, high hardness and compressive strength. It should be noted, although higher than the major strength of the stone, but will increase the load of the structure, it will reduce the intensity and seismic capacity of buildings.