sulphide+of+lead
51Rammelsberg — The mining museum on the slopes of the Rammelsberg Elevation 635 m (2,083 ft) …
52Copper — For other uses, see Copper (disambiguation) …
53Shipham — infobox UK place country = England latitude= 51.3138longitude= 2.7956official name= Shipham population = 765 shire district= Sedgemoor shire county = Somerset region= South West Englandconstituency westminster= Wells post town= Bristol postcode… …
54sulfide mineral — or sulphide mineral Any member of a group of compounds of sulfur with one or more metals. The metals that occur most commonly are iron, copper, nickel, lead, cobalt, silver, and zinc. They are the ore minerals of most metals used by industry (e.g …
55BHP Billiton — Billiton redirects here. For the Indonesian island formerly known as Billiton, see Belitung. BHP Billiton Limited Plc Type Public company Traded as LSE:  …
56Whim Creek Copper Mine — The Whim Creek Copper Mine is an operating copper oxide mine, located in the Pilbara region of Western Australia. History Copper was discovered several kilometres west of the town in 1872 and gold 20 km north in 1887. Copper has been mined on and …
57Pollution in eloor — ENVIRONMENTAL POLLUTION Environmental pollution is the addition of any substance or form of energy (e.g., heat, sound, radioactivity) to the environment at a rate faster than the environment can accommodate it by dispersion, breakdown, recycling …
58Compass Resources — NL Type Public (ASX: CMR) Industry Mining (exploration) Headquarters Sydney, Australia (main headquarters), Darwin, Australia (secondary …
59Late-2000s financial crisis — The TED spread (in red) increased significantly during the financial crisis, reflecting an increase in perceived credit risk …
60Mercury regulation in the United States — is a set of laws and regulations limiting the maximum concentrations of mercury (Hg) that is permitted in air, water, soil, food and drugs. These laws and regulations are promulgated by U.S. Federal Agencies such as the Environmental Protection… …
