Filled emeralds: please face reality
Filled emeralds: please face reality. Published in ICA […]
A new synthetic ruby from Greece poses challenges for gemmologists
A new synthetic ruby from Greece poses challenges for g […]
New fracture-filling materials have replaced oil
New fracture-filling materials have replaced oil. Publi […]
Identifications des fissures traitées
Identifications des fissures traitées. Published in Rev […]
Identification of fissure-treated gemstones
Identification of fissure-treated gemstones. Published […]
Erkennung von Edelsteinen mit behandelten Rissen
Erkennung von Edelsteinen mit behandelten Rissen. Publi […]
Considérations terminologiques au sujet des émeraudes du Nigéria de couleur bleu-vert
Considérations terminologiques au sujet des émeraudes d […]
Blue-green emerald from Nigeria (a consideration of terminology)
Blue-green emerald from Nigeria (a consideration of ter […]
The case for blue-green emerald
The case for blue-green emerald. Published in Jewellery […]
Rubine vom Burma-Typ aus der Gegend von Morogoro in Tansania
Rubine vom Burma-Typ aus der Gegend von Morogoro in Tan […]