New developments in pearl analysis: x-ray microtomography and radiocarbon age dating of pearls
New developments in pearl analysis: x-ray microtomograp […]
Neu im Handel: Rubine aus Montepuez, Mosambik
Neu im Handel: Rubine aus Montepuez, Mosambik. Publishe […]
Echte Perlen – Abalone, Conch, Melo – Exquisites von Meeresschnecken
Echte Perlen – Abalone, Conch, Melo – Exqui […]
Echte Perlen ohne Perlmutter- unbekannt und geheimnisvoll
Echte Perlen ohne Perlmutter- unbekannt und geheimnisvo […]
Der Perlenstruktur auf der Spur
Der Perlenstruktur auf der Spur. Published in GoldOr, 2 […]
New rubies from Montepuez, Mozambique
New rubies from Montepuez, Mozambique. Published in Jew […]
Moonstones and Co: a brief review of the feldspar group
Moonstones and Co: a brief review of the feldspar group […]
Explaining the flame structure in non-nacreous pearls
Explaining the flame structure in non-nacreous pearls. […]
Advancements in gemmological instrumentation over the last 30 years
Advancements in gemmological instrumentation over the l […]