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Перевод: fluorspar

[существительное]
плавиковый шпат

Тезаурус:

1. However, Britain is also a major producer of a number of other industrial minerals including barytes, ball clay, china clay, fluorspar, fuller's earth, gypsum, potash, salt and silica sand.
2. However, large scale mineral operations for china clay, fluorspar, limestone, potash, roadstone and slate are carried out within National Parks from open pit and underground mines on a basis of national need and local employment.
3. In the Northern Pennine Orefield, Minworth Ltd (through Weardale Holdings Ltd) acquired the fluorspar interests of British Steel and Swiss Aluminium.
4. So, after lunching at one of the excellent local inns, we contented ourselves with making a wide sweep South to the River Dove and back up to the Derwent, - stopping at Castleton which, with its show caves and fluorspar (Blue John stone) mines shouldn't be missed and at Eyam which was so badly ravaged by the pestilence of 1665/6 that it is still known as The Plague Village.
5. However, from 1972 to 1984 the Department of Trade and Industry gave grants under the Mineral Exploration and Investment Grants Act 1972 for mineral exploration for the ores of non-ferrous metals, fluorspar, barium minerals and potash, provided the results were deposited with the British Geological Survey.
6. Several underground and opencast fluorspar deposits (with associated baryte and galena) were developed in the Northern Pennine (Weardale mines) and the Southern Pennine (Sallet Hole and Long Rake mines) orefields.
7. The resulting chemical reaction gives off fluorine compounds and hydrochloric acid, which are then neutralized with sodium hydroxide to produce harmless substances such as fluorspar (calcium fluoride), salt and sodium bicarbonate.