http://www.physorg.com/ en-us Physorg.com internet news portal provides the latest news on science including: Physics, Nanotechnology, Life Sciences, Space Science, Earth Science, Environment, Health and Medicine. Scientists at the Johannes Gutenberg University Mainz (Germany) advise buyers of cultured pearls to be more vigilant. "In Germany too, we are increasingly seeing Chinese sweet-water cultured pearls being marketed as Japanese, although they actually originate from China," say Dr Dorrit Jacob and Ursula Wehrmeister of the Institute of Geosciences. http://www.physorg.com/news135317545.html Other Sciences Tue, 15 Jul 2008 05:12:25 EST news135317545