Schaff's Bible Dictionary
MINES, MIN'ING. Remains still exist of ancient Egyptian mines both on the border of the Ethiopian desert and in the Sinaitic peninsula, and, as Moses praises the Promised Land for its mineral wealth, Deut 8:9, it is probable that at the time of the Exodus the Jews understood how to extract metals from the earth. How well acquainted with all mining processes they were at another period appears from Job 28:1-11. See Metals.