Silica silicon content detection // total phosphorus detection

 Detection / Consulting: 180-2871-9376 (Wang Li) QQ: 2419906857 appearance properties are mainly silica shape, section, color, luster, inclusions. By appearance, can be initially determined that crystalline silica or silica cemented silica, whether vein quartz. Crystalline silica general appearance is milky white, gray, yellow, and red-brown. There are distinctive shiny, smooth continuous cross-section, and with sharp edges, hardness and strength are great. Quartz veins showed a dense block, pure white, translucent, hair oil sheen, the section was conchoidal, quartz crystal grains in 2mm more than the naked eye can distinguish. Silica cemented appearance white, gray, yellow and gray, black, red, etc., section dense conchoidal was no obvious granular structure, cross-section of sharp edges obvious, almost no gloss. Fine silica should be dense block, sometimes conchoidal or squamous section, no obvious layered structure, in between the layers is no inclusions, and without limestone housing. The color depends on the impurities, usually iron compound to make silica reddish brown, organic impurities makes silica with gray, black.