Lab Notes 2011 • New Paraiba-type tourmaline from Mozambique (PDF File size: 562 KB)   2010 • Natural Red Andesine from Tibet (PDF File Size: 3.58 MB) • Unusual Cultured Pearls (PDF File Size: 1.12 MB) • Flux grown synthetic Ruby with high iron content (PDF File Size: 2.20 MB) • GIT Coloured Stone Standards GILC 2010 (PDF File Size: 20.5 MB) • "Pigeon Blood" Ruby and "Royal Blue" Sapphire (PDF File Size: 14.2 MB) • Standardisation of Coloured Stones (PDF File Size: 26.2 MB) • Provision of Full Disclosure Practices for Gem Trade • LMHC Information Sheets • New Ruby Deposits in Mozambique (PDF File size: 1.50 MB) • An update on Titanium-diffused Sapphire (PDF File size: 2.19 MB)   2009 •Some Characteristics of " Mozambique" Ruby (PDF File size: 2.62 MB)   2008 • Heating Experiment of Copper-Bearing Tourmaline and Some Interesting Features • Winza Ruby: Declining or Waiting for New Season of Production • Rubies from A New Deposit in Tanzania • Rubies with Unusual Characteristics • Update on an Uncommon Lead-Glass Treated Ruby   2007 • New Blue Treated Sapphire • Irradiated Topaz: Harmful or not? Why?

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