Underground mines can reach extreme depths Unlike surface mines that cant really go down more than 200 feet into the Earth, underground mines can reach some extreme depths. Underground coal mines can reach depths of around 2,500 feet, while some underground uranium mines can go as deep as 6,500 feet. 2.
Interesting Facts about Diamond Mining Diamonds are often addressed as a womans best friends. Not just women, almost everyone shares the love for diamonds, considering them to be a priced possession.
Turquoise, jet, opal, copper, and silver were mined mostly for decorative use. Coal was mined for fuel. Obsidian and other igneous rocks were mined to make projectile points, mortars and pestles, grinding stones, stone axes, and other tools.
Mining requires a heavy set of tools and giant devices. It also requires an exceptional amount of manual labor. The modern process involves digging deep into the earth with heavy machinery, and this machinery undergoes tremendous wear and tear.