| 1. | The worthless gangue was then disposed of, often by draining.
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| 2. | Gangue minerals include common quartz and calcite, and minor barite and chalcopyrite.
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| 3. | Secondly, the mineral is separated from the gangue.
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| 4. | They were very effective and enabled a complete separation of galena and gangue.
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| 5. | Both copper sulfides and molydenite are separated from the gangue by froth flotation.
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| 6. | Both have distinctive metal ratios and gangue minerals.
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| 7. | Water was also used to separate the galena from the gangue in hotching tubs.
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| 8. | In this plant, zircon, rutile and ilmenite are separated from the silica gangue.
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| 9. | The gangue ( the uneconomic waste material ) is mainly quartz and pyrite or pyrrhotite.
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| 10. | Ore minerals are pyrite, sphalerite, and galena, in jasperoid and manganosiderite gangue.
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