The article presents the results of geological and structural studies of the northwestern part of the Gargan quartziferous province. wherein the Bural-Sardyk deposit is located. The early views on this deposit of high-quality siliceous raw materials have been amended using the new data. This deposit is associated with quartzites of the Meso-Proterozoic Irkut formation and discordantly... https://macorners.shop/product-category/custom-shape-necklace/