I. Main items for selecting gold thread beige stone:
1, depending on whether the plate color difference is serious;
2. See if the gold thread is prominent;
3, the thickness of the kanban;
4. Look at the brightness of the board;
5, see if the glue is uniform (and found whether there are cracks and dark cracks)
6, kanban working face whether there is rubber slip;
7. See if there is any shadow in polishing;
Marble is recrystallized limestone, mainly composed of CaCO3. Limestone softens at high temperature and high pressure, and when the minerals in it change, it recrystallizes to form marble. The main components are calcium and dolomite, with many colors, usually obvious patterns and many mineral particles. Mohs hardness is between 2.5 and 5. Because marble generally contains impurities and is easily weathered and dissolved by carbon dioxide, carbide and water vapor in the atmosphere, the surface quickly loses its luster.
Marble is generally soft, which is relative to granite. In interior decoration, marble is suitable for TV cabinets, window sills and indoor floors. Marble is a commodity name, not a petrological definition. Marble is a kind of natural building decorative stone, which generally refers to metamorphic or non-metamorphic carbonate rock with decorative function, and can be processed into building stone or handicraft. It is named after the colorful and ornate stones produced in Diancang Mountain, Dali City, Yunnan Province, China. Marble generally refers to marble, limestone, dolomite, skarn and marble formed by different alteration of carbonate rocks.
Marble is mainly used for processing into various shapes and plates, making walls, floors, platforms and columns of buildings, and is a precious material for furniture inlay. It is also commonly used in monuments, towers, statues, stone crafts, stone lines, washbasins, countertops, wavy lines, edge lines, water-jet puzzles, mosaics, waist lines, stone processing, art background walls, antique face stones, water-washed face stones, litchi face stones, axe-printed face stones, brushed face stones, stair slabs, bathtubs, washbasins, reliefs and other commemorative buildings. Mosaic waist line, wavy line, shower basin, landscaping stone, bathroom products, transparent lamp post, jade mosaic, jade relief painting, cabinets, stone crafts and other materials. Marble can also be carved into handicrafts, stationery, lamps, utensils and other practical works of art. Marble is soft, beautiful, solemn, elegant in style and diverse in color. It is an ideal material for decorating luxury buildings and a traditional material for artistic carving.