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Sorcerers & Sapphires: A Visit to Madagascar
By Richard W. Hughes, with Vincent Pardieu and Dana Schorr

www.ruby-sapphire.com/madagascar_ruby_sapphire.htm

 

Fluxed Up: The Fracture Healing of Ruby
By Richard W. Hughes, With an appendix by John L. Emmett

www.ruby-sapphire.com/flux_healing_mong_hsu_ruby.htm

 

There's a Rumble in the Jungle: The Sapphire Face-lift Face-off Saga
By Richard W. Hughes

www.ruby-sapphire.com/blue_surface_diffusion.htm

 

Foreign Affairs: Fracture healing/filling of Mong Hsu ruby
By Richard W. Hughes & Olivier Galibert

www.ruby-sapphire.com/foreign-affairs.htm

 

Articles about the Gem Trade in Afghanistan:


Afghanistan:  Land of beautiful gems and unique people
www.fieldgemology.org/
gemology%20afghanistan%20ruby%20jagdalek%20emerald%20panjshir.php#introduction

 

NPR Article Gems in Afghanistan

www.npr.org/templates/story/story.php?storyId=14239357

 

Afghanistan: Panjshir Valley Emeralds & Jegdalek Ruby

www.allaboutgemstones.com/gems_afghanistan.html

 

Article by the British Geological Society about Afghanistan

www.nerc.ac.uk/publications/planetearth/2006/winter/win06-afganistan.pdf