Granite stone, is one kind of igneous rock, a marble metamorphic rock formation, it is quality is harder and dense. The quality of granite stone depends on the mineral composition and structure. Good quality granite, its crystal grain is fine and uniform, less content of mica, more content of quartz content. Not easily weathered metamorphic, exterior colour and lustre can keep unchanged over one hundred years, hardness is higher and more wear resistant qualities, that makes granite has become the darling of the advanced building decoration. Also because of its characteristics, granite tile is more suitable for outdoor metope, flooring; Compared with marble, it is more suitable in interior design.

Granite tile has 7 color series and 3 textures according to the granite stone classification standard powered by domestic economy apartment mining bureau.

Choosing ways of granite stone:

Texture refers to the ground surface of rock samples under naked eye or microscope, mineral particle shape and arrangement.

Granular: mineral composition, equal to the uniform particle size of particles.

Speckled surface: larger crystalline particles embedded in an aggregate of small crystal particles.

Stripes: mineral grains have directional arrangement, form parallel or banded structure.