New Tanzania mine uncovers source of exceptional rubies
New Tanzania mine uncovers source of exceptional rubies […]
New rubies from central Tanzania
New rubies from central Tanzania. Published in Gems &am […]
Observations on treated ruby and sapphire
Observations on treated ruby and sapphire. Published in […]
Rubine aus neuen Vorkommen in Madagaskar
Rubine aus neuen Vorkommen in Madagaskar. Published in […]
Beobachtungen an hitzebehandeltem Rubin mit künstlicher Rissheilung
Beobachtungen an hitzebehandeltem Rubin mit künstlicher […]
Element mapping of trapiche rubies
Element mapping of trapiche rubies. Published in Journa […]
How to identify Douros synthetic rubies
How to identify Douros synthetic rubies. Published in J […]
A new synthetic ruby from Greece poses challenges for gemmologists
A new synthetic ruby from Greece poses challenges for g […]
Rubine vom Burma-Typ aus der Gegend von Morogoro in Tansania
Rubine vom Burma-Typ aus der Gegend von Morogoro in Tan […]