TSAVORITE: A DEADLY GEM

The clear bright green stone that looks much like an emerald (and is a modern favorite at Tiffany's) is called "tsavorite." It was discovered in 1967 by the Scottish geologist Campbell Bridges, who mined for rare gemstones in Kenya. Campbell was murdered near his mine in August by a mob armed with arrows, spears, and machetes. The motive may have been a dispute over mining rights. Six men have been arrested so far.