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