- hematite ores
- Смотри гематитовые руды.
Энциклопедический словарь по металлургии. — М.: Интермет Инжиниринг. Главный редактор Н.П. Лякишев. 2000.
Энциклопедический словарь по металлургии. — М.: Интермет Инжиниринг. Главный редактор Н.П. Лякишев. 2000.
Hematite — For other uses, see Hematite (disambiguation). Hematite Hematite (blood ore) from Michigan (unknown scale) General Category … Wikipedia
гематитовые руды — [hematite ores] железные руды с рудным минералом гематитом (Fe2O3), обычно с примесью магнетита (Fe3O4); pacпространены в коре выветриваемых железистых кварцитов (мартитовые руды), в скарновых, гидротермических и вулканогенно осадочных… … Энциклопедический словарь по металлургии
Iron ore — Iron ores are rocks and minerals from which metallic iron can be economically extracted. The ores are usually rich in iron oxides and vary in colour from dark grey, bright yellow, deep purple, to rusty red. The iron itself is usually found in the … Wikipedia
North America — North American. the northern continent of the Western Hemisphere, extending from Central America to the Arctic Ocean. Highest point, Mt. McKinley, 20,300 ft. (6187 m); lowest, Death Valley, 276 ft. (84 m) below sea level. 400,000,000 including… … Universalium
Poland in Antiquity — Peoples belonging to numerous archeological cultures identified with Celtic, Germanic and Baltic tribes lived in various parts of Poland from about 400 BC. Other groups were no doubt also present, as ethnic composition of archeological cultures… … Wikipedia
South America — South American. a continent in the S part of the Western Hemisphere. 271,000,000; ab. 6,900,000 sq. mi. (17,871,000 sq. km). * * * Continent, Western Hemisphere. The world s fourth largest continent, it is bounded by the Caribbean Sea to the… … Universalium
Marquette, Michigan — City … Wikipedia
Vijayanagar Metropolitan City — comprised of the urban core of the imperial city and the surrounding principalities of the regal capital of the Vijayanagar empire in the time period spanning early 14th. century to the middle of 16th. century C.E.Abdur Razzak, the Persian… … Wikipedia
Kryvyy Rih — Russian Krivoy Rog City (pop., 2001: 669,000), southeast central Ukraine. Founded as a village by Cossacks in the 17th century, it grew slowly until a railway was constructed to the Donets Basin in 1884; it soon became a significant iron mining… … Universalium
iron processing — Introduction use of a smelting process to turn the ore into a form from which products can be fashioned. Included in this article also is a discussion of the mining of iron and of its preparation for smelting. Iron (Fe) is a… … Universalium