From time to time, we receive some oddities for testing, such as the rough “emerald”, reportedly originating from Africa and submitted by a client for testing. Already a quick visual examination made it clear that this was not an emerald. The surface was dominated by conchoidal fractures and covered partly

Presentation by PD Dr. Michael S. Krzemnicki Download Pdf Want to learn more about emeralds? Start your journey to becoming an emerald expert with our free online course „Introduction to emeralds“. Learn all about emeralds. Their fascinating history, how they form, where they come from. Learn about

In early 2019, an Australian client submitted a small series of gem- quality light green emeralds ranging from 2.01 – 5.80 ct in weight, which reportedly originated from the same rough crystal from the Riverina deposit in Western Australia (Figure 1). Known since the late 1970s (Whitfield, 1975), this deposit

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. Published in Journal of Analytical Atomic Spectrometry, 2021, https://doi.org/10.1039/