| 1. | The richest farmland was plowed and the richest mineral ore mined first.
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| 2. | -Executive Committee Member of the Goa Mineral Ore Exporters Association ( GMOEA ).
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| 3. | Pyrite is an insoluble crystalline structure that is abundant in coal-and mineral ores.
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| 4. | Mineral ores such as chromium, sulphur, and marble have been discovered in the district.
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| 5. | Bauxite is a mineral ore used to produce alumina, a raw material of aluminum.
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| 6. | Biomining operations have enabled the solubilization of low-grade mineral ores.
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| 7. | In Zaire and Zambia, copper and cobalt are mixed in the form of mineral ore.
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| 8. | The region around Salem is rich in mineral ores.
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| 9. | The main objectives of the company was export of mineral ores and import of essential metals.
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| 10. | Tonnage can refer to the quantity of a mineral or the mineral ore extracted from a mine.
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