Silica,Quartz

● Quartz

Quartz ,or Silica (SiO2) is a hard mineral which, not having any cleavage planes, does not fracture easily. Quartz is found in many types of rocks. Granites, shown below, are common plutonic rocks that have a high quartz content. The quartz minerals are, in the rocks shown at left and below, clear to white. The rocks in the background of the image below are polished, showing the minerals of the rock in cross section, whereas the outlined, inset box shows rocks as they were found, both rounded and angular.

All rocks are subject to weathering - besides plutonic rocks there are also sedimentary, volcanic and metamorphic (altered by heat and/or pressure) rocks. Some sedimentary rocks in particular, such as sandstone, shown below, have a large amount of quartz sand alreadu incorporated into them. They act as a ready source of sand, easily eroded quartz grains that have already been separated from their original mineral matrix. Grains from these rocks may be rough or already smooth, depending on the conditions in which they were originally formed.

? Established in 1985, we Yanxi Minerals Co.,Ltd. is located in the area of Taihang mountain Hebei province China, which is famous for it's mica, vermiculite, quartz etc. resources. We have two branches in Shijiazhuang city and TianjinCity, which take charge of sale of products and after service. Yanxi minerals processing factory lies in Lingshou County which belongs to Shijiazhuang City Hebei province, only 240km to Beijing, and 320km to Tianjin Port, so it is very convenient for products? transporting and export.Our factory is one of the largest processing factories specialized in vermiculite and mica in China,has sets of advanced machine to process vermiculite, mica, quartz, perlite, feldspar etc. nonmetal minerals. Thus we can process various grades and sizes of minerals as per customers? request. It is a modernized company gathering minerals' processing, technology developing and sale of mica, vermiculite, quartz etc. products. We can process and sale minerals more than 100000mt annually.For many years, we take the quality as our basic element for living. We invest much in buying various advanced equipment for production, quality control and inspection as well as engage higher technicians in conducting production to guarantee good quality. We have our own storage in Xingang port, which is one of the biggest ports in China and assign special personnels to take charge of all the normal forwarding duties, checking weights, packaging and loading. Our products are exported to Japan, Korea, Southeast Asia, Europe etc. countries and areas widely used in building material, horticulture, ceramic, metallurgical, insulation, refractory, chemical, machinery, light-industry, abrasive and aerospace industries etc..Yanxi will devote attention to continuing to improve the quality of it's products, it's distributing system, logistic net work, customer service network and e-business platform to be the leading supplier of nonmetal minerals in China.