The Salt Lake of Qom is 75square area, which contains a 7m thick salt layer. Its capacity amounts to 260-520000000cubic meters saline water. Because of high Mg content (20gr/lit), saline water was introduced as a magnesium resource for magnesia production. Probable reserve of MgO is about 7.8 to 10.6 million tons. The analysis of saline water shows this composition (ppm):
Co3H Cu So4 Ca Mg Na K B I Br
115 193068 14000 668 61700 88600 2890 64.86 26.2 1378
It is possible to produce silver from the saline water.