Black gold sand, black with gold points, hard enough, not easy to spend. The price is not expensive. In addition to the black gold sand, other pure black without pattern is mostly dyed, and will lose color later. But it will not fall very much. Or beige marble, because there are many varieties of marble are beige, the name is what what beige. The beige ones should also be chosen as hard enough. This all undyed. Use the white one, you will regret it later, it will yellow after 1 year. There are also very Loc color ones, basically dyed, will definitely lose color. The red one, and the gray one are good too. The red one is a tangerine red. For the gray ones, get a Cinderella. If you are very rich, you can get a jade, red dragon king, Norwegian colored jade, Snow White, green jade, and so on. But they are very expensive. Different grades of marble slabs look different. Because marble is a natural composition, shortcomings are inevitable. Together with the processing equipment and gauges of good and bad is also constitute the cause of the shortcomings of the plate. Some plates of the plate body is not full (warping or depression), the plate body has shortcomings (cracks, trachoma, color spots, etc.), the plate body standards vary (such as the lack of corners, the plate body is not correct) and so on. In accordance with national standards, all grades of marble slabs are allowed to have certain shortcomings, only the superior product is not so obvious. Selection of mottled color marble plate colorful, colorful, mottled none of the same, which is the precious charm of marble plate. Color fundamental **** the same, small color difference, mottled beautiful is a good kind of specific performance, otherwise it will seriously affect the decorative effect. Detect the appearance of glossy marble plate appearance of glossy bump will greatly affect the decorative effect. Generally speaking, the polished surface of the marble plate should have the same luster as the mirror, can clearly reflect the scene. But different quality of marble because of different chemical composition, even if it is the same level of products, the gloss of the difference will be great. Of course, the same raw material between the different grades of the plate appearance of gloss will also have a certain difference. In addition, the strength of the marble plate, water absorption rate is also an important goal to assess the quality of marble.