The PDF version of this issue is available at no charge. Visit www.gia.edu Gem-Quality Green ZoisiteN.R. Barot and Edward W. Boehm Kilbourne Hole PeridotJohn R. Fuhrbach Opal from Querétaro, Mexico: Fluid Inclusion StudyRonald J. Spencer, Alfred A. Levinson, and John I. Koivula Natural-Color Nonconductive Gray-to-Blue DiamondsEmmanuel Fritsch and Kenneth Scarratt Peridot as an Interplanetary GemstoneJohn Sinkankas, John I. Koivula, and Gerhard Becker Every issue also includes the most up-to-date reports from the GIA Laboratory (Lab Notes) and gemologists around the world (Gem News International).GIA students and alumni save 10% on back issues! Enter coupon code GGALUM at checkout. Usually ships in 3-5 business days. SKU: 439202
