| 41. | Most of the ore mined had a low iron content and required substantial refining or beneficiation before use in blast furnaces.
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| 42. | It can also bring on anemia, which might explain the evidence of low iron content in some of the mummy's muscles.
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| 43. | One of the advantages of magnetite concentrate is its high iron content and low impurities compared to traditional iron ore products.
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| 44. | The main feature of this sapphire is the dark blue or close to black color because of the high iron content.
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| 45. | Natural ores have an iron content of 51 to 57 per cent while the pellets contain 60 to 67 per cent.
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| 46. | Because the water's high natural iron content might otherwise foul the plumbing, chelating agents were added to keep the iron in solution.
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| 47. | Local attractions include the " fuente agua agria " water with a high iron content which is purported to have medicinal properties.
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| 48. | Iron content in and around Crystal Lake was enough to attract interest in iron mining; references to mining date back to 1778.
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| 49. | As in the Pennsylvania diabase ringing rocks, this point suggests that iron content is not a primary factor in the ringing ability.
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| 50. | Its waters were one of very few throughout Europe to have been classified as a medicine due to their high iron content.
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