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Granite evaluation method
Nov 26, 2018

1)Observed, that is, the surface structure of the stone is observed by the naked eye. Generally speaking, the uniform fine material structure of the stone has a delicate texture, which is a good stone material; the coarse grain and the unequal grain structure stone have poor appearance effect, the mechanical properties are not uniform, and the quality is slightly poor. In addition, due to the influence of geological effects in natural stone, some fine veins and micro-cracks are often produced in it, and the stone is most likely to rupture along these parts, and should be removed. As for the lack of edges and angles, it is more important to affect the appearance, especially when choosing.

2)Measurement, that is, measuring the size specifications of the stone. In order to avoid affecting the splicing or causing the pattern, pattern and line deformation after splicing, affecting the decorative   effect.

3)Listen, that is to hear the sound of stone.Generally speaking, the stone with good quality, uniform internal density and no micro-cracks, has a sound of ringing sound.On the contrary, if there are micro-cracks or fine veins in the stone, or because of weathering, the contact between particles become loose, then the cracking sound is rough.

4)Testing, that is, using a simple test method to verify the quality of the stone. Usually a small drop of ink is dropped on the back side of the stone. If the ink is quickly dispersed and leached everywhere, it means that the inner particles of the stone are loose or there are micro-cracks, and the stone quality is not good; otherwise, the stone is dense and the texture is good.

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