Ruby & Sapphire (1997) • Burma (Myanmar) Ruby & Sapphire
1 January 1997
The chapter on ruby and sapphire from Burma (Myanmar) from Richard Hughes' 1997 book, Ruby & Sapphire.
History of Ruby & Sapphire Heat Treatment
1 July 1995
A brief history of the heat treatment of ruby & sapphire, from ancient times to the modern era.