| 21. | Iron ore, gold and nickel, as well as gemstones like tanzanite, are mined.
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| 22. | After heating, tanzanite becomes dichroic.
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| 23. | "We don't want to be forever out of the tanzanite business,"
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| 24. | Popular items in both chains included diamond bracelets and earrings and jewelry made with the blue stone tanzanite.
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| 25. | Two weeks ago, nine people were killed in a dynamite blast in one of the tanzanite mines.
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| 26. | Nine workers were killed in two separate incidents in Tanzanite mines in northern Tanzania, officials said Friday.
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| 27. | He also announced a ban on the export of unprocessed tanzanite, a gemstone only mined in Tanzania.
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| 28. | The intent of the submission was to help provide the same facts as the wiki article on tanzanite.
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| 29. | "Tanzanite had always come up during our conversations; it's an exquisite stone,"
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| 30. | Zale Corp . has removed from its display cases jewelry containing tanzanite because of its possible links to terrorism.
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