| 21. | A cobalt deficiency in the soil means grazing animals need supplements.
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| 22. | Both axial ligands are initially bonded to the central cobalt atom.
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| 23. | He has worked in cobalt and springstone, among other media.
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| 24. | In the early period only cobalt blue was used for decoration.
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| 25. | Mines produce gold, silver, zinc, cobalt and nickel.
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| 26. | In general, the sulfides of cobalt are black, nonstoichiometric.
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| 27. | In addition cobalt is treated at the West Mill Cobalt Plant.
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| 28. | In addition cobalt is treated at the West Mill Cobalt Plant.
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| 29. | It was developed in the subsequent Cobalt silver rush of 1903.
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| 30. | "Cobalt " was completed early in January 1941.
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