One view, that is, to observe the surface structure of stone, in general, uniform fine material structure of stone with exquisite texture, for the jiapin stone; coarse-grained and unequal-grained structure of stone its appearance effect is poor, in addition, because of the geological effect of the stone often produced in some small cracks, stone most easily along these parts of the rupture, should pay attention to remove, as to the lack of angular impact is more beautiful, choose to pay attention.

Two volumes, that is, the size of the stone specifications, so as not to affect splicing, or the mosaic after the pattern, pattern, line deformation, affect decorative effect.

Three listen, that is, listen to the percussion sound of stone, generally speaking, the quality of the stone its percussion sound crisp and pleasing, on the contrary, if there is a slight fissure inside the stone or due to weathering caused by the contact between the particles loose, then tap the sound of Gruff.

Four-Test, that is, using simple test methods to test the quality of stone, usually on the back of the stone drops a small ink, such as ink quickly scattered around the leaching, that is, the stone internal particles loose or gaps, stone quality is not good.