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| | Top 20 Encyclopedia (via CobWeb/3.1 planetlab1.tamu.edu) (Site not responding. Last check: 2007-11-06) |
 | | Materials commonly recovered by mining include bauxite, coal, copper, diamonds, iron, gold, lead, manganese, magnesium, nickel, phosphate, platinum, rock salt, silver, tin, titanium, uranium, and zinc. |
 | | Black gun powder in mining was first time used in a shift Bartolomej in mines under the town Banská Štiavnica, Slovakia in 1627. |
 | | Modern mining companies in many countries are required to follow strict environmental and reclamation codes, ensuring the area mined is returned to its original state, or an even better environmental state than before mining took place. |
| encyc.connectonline.com.cob-web.org:8888 /index.php/Mining (887 words) |
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