Spring 2009

The PDF version of this issue is available at no charge. Visit www.gia.edu The French Blue and the Hope: New Data from the Discovery of a Historical Lead CastFranaois Farges, Scott Sucher, Herbert Horovitz, and Jean-Marc Fourcault   Gray-to-Blue-to-Violet Hydrogen-Rich Diamonds from the Argyle Mine, AustraliaCarolyn H. van der Bogert, Christopher P. Smith, Thomas Hainschwang, and Shane F. McClure   Hackmanite/Sodalite from Myanmar and AfghanistanDavid Kondo and Donna Beaton   Solution-Generated Pink Color Surrounding Growth Tubes and Cracks in Blue to Blue-Green Copper-Bearing Tourmalines from MozambiqueJohn I. Koivula, Kevin Nagle, Andy Hsi-Tien Shen, and Philip Owens   Identification of the Endangered Pink-to-Red Stylaster Corals by Raman SpectroscopyStefanos Karampelas, Emmanuel Fritsch, Benjamin Rondeau, Aude Andouche, and Bernard Metivier Every issue also includes the most up-to-date reports from the GIA Laboratory (Lab Notes) and gemologists around the world (Gem News Intern