1, according to the purchase purpose
According to different categories, the texture style of marble is also different, some are simple and clear, some are thick and colorful, some are irregular and tortuous, and some are linear. Marble has few textures, is fine and clear, has a wide range of uses, can be applied to a variety of styles, and does not require high decoration area.
Marble with complex texture and heavy color requires higher space area and collocation. Some stones can also be abstract effects such as scenery, clouds, patterns and snowflakes. This kind of marble is more suitable for background wall.
2. Shopping according to appearance
In the case of sufficient light, the marble slab is laid flat on the ground, and invisible defects are observed at the distance from the marble slab 1m, which is considered as no defects; Defects that are visible when standing at the distance from the board 1m but not obvious at the distance of 1.5m are inconspicuous defects; An obvious defect at a distance of 1.5m from the plate is regarded as a defect. The specific observed defect is the warping of the plate; Whether there are cracks, sand holes, different color spots, stains and depressions on the surface of the plate.
If it is judged that there are no above defects, the plate is a superior product; If the above defects are not obvious and there is no obvious lack of edges and corners, then this plate can be considered as a first-class product; If there are several defects that do not affect the use, and the front of the plate is only 1, the length is not more than 8mm, the width is not more than 3mm, and the missing edge or the length and width are not more than 3mm, the plate can be judged to be qualified.
High quality marble:
Inferior marble:
3. Buy by quality
Use simple testing methods to test the quality of stone. Drop a small drop of ink on the back of the stone. If the ink is quickly dispersed and leached everywhere, it means that the particles in the stone are loose or have gaps, and the quality of the stone is not good. On the other hand, if the ink drops are in place, it means that the stone is fine in texture.
4. Distinguish between true and false purchases
Vinegar will react with marble to produce calcium acetate, so dropping vinegar on marble will change the surface of the stone and make it rough, so you can see if it is really marble. However, due to the weak acidity of acetic acid itself, the test time is long, and consumers will not see the results for a while, and the effect of dilute hydrochloric acid is more obvious.
5, according to the luster of marble to buy.
The surface gloss of marble board will greatly affect the decorative effect. Generally speaking, the polished surface of high-quality marble plate should have mirror-like luster, which can clearly reflect the scenery, while the polished surface of inferior marble plate is rough.
Baidu encyclopedia-marble