Gold Mining Equipment – Silver, Copper,- 911Metallurgist
Underground hard rock mining refers to various underground mining techniques used to excavate hard minerals, usually those containing metals such as ore containing gold, silver, iron, copper, zinc, nickel, tin and lead, but also involves using the same techniques for excavating ores of gems such as diamonds or rubies. Soft rock mining refers to excavation of softer minerals such as salt, coal, or oil sands. Underground mining (hard rock) - Wikipedia,Artifacts found underground in a Michigan copper mine: 1) 8 lb. hammer head, 2) chisel used for cutting up large pieces of copper so they could be removed from the mine, 3) hammer/pick head, 4) two pieces of a broken copper chisel like number 2, 5) chisel head, 6) copper chiselings made in the process of cutting up large pieces of copper,Small Scale Mining Equipment — Appropriate Process,,Small scale mining equipment is available from renown engineers and suppliers, Appropriate Process Technologies (APT). APT's small scale mining equipment is simple to use, efficient and effective. Options are available for the recovery of gold, tin, chrome, tantalite and more.