One of the most striking features of Qinghai is its astonishing salt lakes, represented by Qinghai Lake, the largest saltwater lake in China. The province has more than 30 salt lakes, providing rich reserves of sodium chloride, potassium chloride, magnesium salts, lithium chloride and strontium ore. Potassium salt in Qinghai accounts for 79 percent of national reserves and magnesium salt accounts for 93.5 percent.