four strokes teach you to identify good

 Quality stone products currently on the market varies greatly, decorative stone for the processed product, its quality can be used to identify four aspects:
A concept, namely the wet diamond polishing pads  naked eye stone surface structure. In general, uniform fine structure of the stone material with a delicate texture, for the stone to share; ranging from coarse grain structure of the stone and its appearance is poor. In addition, the stone due to the impact of geological processes which often produce some minor cracks in the stone along these areas most vulnerable to rupture, should pay attention to the screening. As for the lack of impact of more angular appearance, particular attention should be selected.
Two volume, ie the amount of stone sizes, so as concrete cutting  not to affect splicing, or cause splicing patterns, patterns, lines, deformation, affecting the decorative effect.
Three, that is to listen stone percussion sounds. In general, good quality stone its clear crisp percussion; contrary, if the stone house there is a slight crack or indirect result of weathering resulting thixotropic loose particles, then the percussion sound gruff.
Four test, which uses a simple 14 inch saw blade  test method to test the quality of the stone or bad. Usually drops on the back a stone pellets ink, such as ink quickly disperse leaching, which indicates the presence of stone or loose particles inside the gap, stone poor quality; Conversely, if the ink droplets in place does not move, then the stone texture is good.