Multi-element analysis of minerals using laser ablation inductively coupled plasma time of flight mass spectrometry and geochemical data visualization using t-distributed stochastic neighbor embedding: case study on emeralds
Multi-element analysis of minerals using laser ablation […]
Chipping of Emeralds
The cleaning process of emeralds, often supported by mechanical tumbling and ultrasonic cleaning may result in chipping or even cracking of pre-existing fissures within emeralds at any time afterwards.
Emeralds and the Saga of Cleaning and Filling Fissures
There is a long established tradition in the trade to fill open fissures in emeralds with colourless fillers, such as oil, wax and (artificial) resins, to reduce their visibility. Disclosure of such treatments is mandatory (CIBJO), including a quantification of the filler substance, as this may have a direct im
The Beryl Group – an Overview
The Beryl Group – an Overview. Published in Journal of […]
Gemmological investigations on pearls and emeralds using neutron imaging
Gemmological investigations on pearls and emeralds usin […]
Emeralds and the saga of cleaning and filling fissures
Emeralds and the saga of cleaning and filling fissures. […]
Case study on an emerald bead: Is it from the ancient mines in Egypt or not?
Case study on an emerald bead: Is it from the ancient m […]
Asterism in beryl, aquamarine and emerald- an update
Asterism in beryl, aquamarine and emerald- an update. P […]
Der Binntal Smaragd als Juwel
Der Binntal Smaragd als Juwel. Published in Schweizer S […]
Les nouvelles mines d’émeraudes de la Pita (Colombie)
Les nouvelles mines d’émeraudes de la Pita (Colom […]