Four Treasures Reference Database
Record No. 1714

The Heat Treatment of Ruby & Sapphire

Book
Themelis, T. (1992) The Heat Treatment of Ruby & Sapphire. No city, Gemlab Inc., 254 pp.
Sinkankas/Born No.: NIS/NIB  |  RWHL*
Hide Keywords Copy Reference
corundum, ruby, sapphire, treatments.6, inclusions.5, Colombia.12, Brazil.12, USA.12, Montana.12, Idaho.12, gems