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Acid mine drainage — Yellow boy in a stream receiving acid drainage from surface coal mining. Acid mine drainage (AMD), or acid rock drainage (ARD), refers to the outflow of acidic water from (usually abandoned) metal mines or coal mines. However, other areas where… … Wikipedia
Sulphur acid — Sulphur Sul phur, n. [L., better sulfur: cf. F. soufre.] 1. (Chem.) A nonmetallic element occurring naturally in large quantities, either combined as in the sulphides (as pyrites) and sulphates (as gypsum), or native in volcanic regions, in vast… … The Collaborative International Dictionary of English
sulphuric acid — Sulphur Sul phur, n. [L., better sulfur: cf. F. soufre.] 1. (Chem.) A nonmetallic element occurring naturally in large quantities, either combined as in the sulphides (as pyrites) and sulphates (as gypsum), or native in volcanic regions, in vast… … The Collaborative International Dictionary of English
sulphurous acid — Sulphur Sul phur, n. [L., better sulfur: cf. F. soufre.] 1. (Chem.) A nonmetallic element occurring naturally in large quantities, either combined as in the sulphides (as pyrites) and sulphates (as gypsum), or native in volcanic regions, in vast… … The Collaborative International Dictionary of English
Gossage — is a family name of soapmakers and alkali manufacturers. Their company eventually became part of the Unilever group. During World War II, all soap brands were abolished by British government decree in 1942, in favour of a generic soap. When… … Wikipedia
pyrite — pyritic /puy rit ik, peuh /, pyritical, pyritous /peuh ruy teuhs, puy /, adj. /puy ruyt/, n. a very common brass yellow mineral, iron disulfide, FeS2, with a metallic luster, burned to sulfur dioxide in the manufacture of sulfuric acid:… … Universalium
Rio Tinto Group — Rio Tinto Limited plc Type Public company (ASX: RIO, LSE: … Wikipedia
pyrite — /ˈpaɪraɪt / (say puyruyt) noun a very common brass yellow mineral, iron disulphide (FeS2), with a metallic lustre, burnt to sulphur dioxide in the manufacture of sulphuric acid; fool s gold. Also, pyrites, iron pyrites. {Latin pyrītēs. See… …
pyrite — [pī′rīt΄] n. pl. pyrites [pi rīt′ēz΄, pīrīt′ēz΄; pī′rīts΄] [L pyrites < Gr pyritēs, flint or millstone < pyritēs ( lithos), fire (stone) < pyr, FIRE] a hard, brittle, yellow mineral, FeS2, dimorphic with marcasite and occurring… … English World dictionary
py|rite — «PY ryt», noun, plural rites « ryts». a common yellow mineral with a metallic luster, a compound of iron and sulfur, which looks like and is often mistaken for gold; iron pyrites; fool s gold. It is used in making sulfuric acid. »Pyrite, in… … Useful english dictionary
Environmental effects of coal — There are a number of adverse environmental effects of coal mining and burning.These effects include: * release of carbon dioxide and methane, both of which are greenhouse gases causing climate change and global warming according to the IPCC.… … Wikipedia