| 单词 | siderite |
| 例句 | The Xinjiang meteorite weighs 17.8 tons and is made of siderite, or iron carbonate, according to a report in the Chinese news media that cited an official research center. Meteorite Finder Fights China’s (Mostly Terrestrial) Property Law 2017-04-08T04:00:00Z There it forms a large deposit, in a granitic vein running through gneiss, and is accompanied by quartz, siderite, galena, blende, chalcopyrite, &c. Encyclopaedia Britannica, 11th Edition, Volume 7, Slice 7 "Crocoite" to "Cuba" 2012-01-22T03:00:24.397Z The entrance is flanked by large chunks of ironstone, or siderite, and features crushed brick paving, a reference to the brickyard that operated there for much of the 20th century. Laurel area rich in dinosaur fossils is dedicated as a park 2009-10-27T04:00:00Z Maskelyne denominates as siderites those meteorites which consist chiefly of iron. On the magnet, magnetick bodies also, and on the great magnet the earth a new physiology, demonstrated by many arguments & experiments The name siderite is in common use, but it is open to objection since it had earlier been applied to several other species, and is also now used as a group name for meteoric irons. Encyclopaedia Britannica, 11th Edition, Volume 5, Slice 7 "Cerargyrite" to "Charing Cross" Scientific examination proved it to be a "siderite," or mass of "nickel-iron"; its weight exceeded eight pounds, and it contained many nodules of graphite. A Popular History of Astronomy During the Nineteenth Century Fourth Edition Sediments thus formed include limestone and dolomite, siderite, salt, gypsum, potash, sulphur, phosphates, nitrates, and other minerals. The Economic Aspect of Geology We have said that a noise accompanied the descent of the Rowton siderite, and it is on record that a loud explosion took place when the meteorite fell at Ensisheim. The Story of the Heavens This compound occurs in nature as siderite, and is a valuable ore. An Elementary Study of Chemistry Their principal iron mineral is hematite, although the English ores also contain considerable iron carbonate or siderite. The Economic Aspect of Geology Some of these objects are composed of very characteristic materials; take, for example, one of the more recent arrivals, known as the Rowton siderite. The Story of the Heavens The Bilbao ores consist mainly of siderite, which near the surface has altered to large bodies of oxide minerals. The Economic Aspect of Geology This is one of the ordinary stony meteorites, and is thus contrasted with the Rowton siderite which we have just been considering. The Story of the Heavens This siderite is specially interesting on account of its distinctly metallic character. The Story of the Heavens Sometimes, as in the Rowton siderite, the whole object consists of little else; sometimes this alloy is in grains distributed through the mass. The Story of the Heavens |
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