haematite उदाहरण वाक्य
उदाहरण वाक्य
- After 1918 a steep decline set in, with changes in the structure of the industry and increasing difficulty in mining haematite.
- Sandur, which formed the southern boundary of the greater metropolitan region, is still known today for iron and haematite ores.
- Some were owned by the Kennedy Brothers Ltd . firm of Ulverston Barrow Haematite Steel Co and the Millom and Askam Iron Company.
- At both banded iron formations ( metamorphosed to staurolite-grade itabirites ) have been enriched to form haematite and haematite-goethite mineralisations.
- At both banded iron formations ( metamorphosed to staurolite-grade itabirites ) have been enriched to form haematite and haematite-goethite mineralisations.
- BHP identified haematite-goethite mineralization assigned to the Dales Gorge Member of the Brockman Iron Formation on the southern margin of the ranges.
- Nodules of haematite with highly polished surfaces have been found as well; the shiny surfaces suggest that the nodules were used to finish leather.
- In the intervening years, the Hodbarrow iron mines began extracting haematite from deposits between the village of Holborn Hill and the seashore at Hodbarrow.
- The matrix itself does not contain any metallic ions, the haematite is substituted in aluminium and titanium while the corundum is substituted in iron.
- The Koolan Island mine closed in 1994 after BHP had extracted 68 million tonnes of high-grade haematite ore, averaging 67 % iron.