Stone material hardness with mohs hardness as the calculating white marble slabs unit, mohs hardness in 6 to 7 belongs to hard stone, granite, for example, mohs hardness in 3-5 belongs to hard stone, marble, for example, mohs hardness in 1 or 2 as the soft stone, such as limestone and dolomite.
Big li shi: because marble is general contains impurities, and calcium carbonate by carbon dioxide in the atmosphere, carbide, the effect of moisture, also easy to weathering and dissolution, and make the surface soon lose its luster. So a few, such as white marble, YiYeQing pure and less impurity, more stable and durable quality varieties can be used in outdoor, other varieties should not be used in outdoor, typically used for interior decoration. Mohs hardness in 3-5.
Granite: granite marble high hardness and difficult to machining, but the acid corrosion, weathering resistance. Not easily weathered metamorphic, appearance can keep more than one hundred, with so much to wall and exterior wall facing. Because of the granite high hardness, wear resistance, so often used in architectural decoration engineering, for example, the ground of the lobby. Mohs hardness in 6-7.
Marble (basic) : marble stone mineral composition is white marble mosaic simple, easy processing, most of the fine texture, mirror effect is good, the natural grain is being presented is very rich. The downside is the granite texture soft, hard heavy objects hit vulnerable, light color stone material is easily contaminated. Floor as far as possible choose marble colors. Because marble is generally contains impurities, and calcium carbonate by carbon dioxide in the atmosphere, carbide, the effect of moisture, also easy to weathering and dissolution, and make the surface soon lose its luster. So most of the varieties of marble should not be used in outdoor, typically used for interior decoration.
Color of marble color temperature make people feel more warmth is tonal, downy, most have texture or patterns, but also have exception, less apparent crystalline particles, such as crystal white or yellow rosin.
Granite stone (acid) : granite stone is no chromatic pietra gray marble stripe, only color speckle pattern, the pattern is characteristic of small, uniform grains, and distribution of the mica window like stars and shiny quartz crystal. The mineral grains as thin as possible, structure is compact. Granite color color temperature tends to make people feel cold and hard, more wear-resisting, most of the grey marble slab surface pattern looks flower flower, color is bright, polishing treatment after finish above marble and there is no grain had the characteristics of crystallization of particle uniform distribution, but has little flow lines, such as super red, etc. Rock hard and dense, high hardness, wear resistance, not easily weathered metamorphic, appearance can keep more than one hundred, so often used in architectural decoration engineering, decorate in the household adornment in more applicable to the outdoor balcony, yard, the ground of the restaurant and the window sill.