[Rockhounds] New analysis traces origin of gems from Cleopatra's mines and Roman times

[Paul]

Jeffrey Joy in New analysis traces origin of gems from
Cleopatra's mines and Roman times, wrote,

https://cosmosmagazine.com/earth/earth-sciences/tracing-the-origin-of-ancient-gems/

The open access paper is:

Amal Abdelfattah Khedr, Adel A. Surour, Ahmed
El-Hussein, Mahmoud Abdelhamid; Characterization
and discrimination of some gem silicate minerals
adopting LIBS, FTIR, and Raman spectroscopic
techniques. AIP Advances 1 August 2023; 13 (8): 085101.
https://doi.org/10.1063/5.0157623
https://pubs.aip.org/aip/adv/article/13/8/085101/2904854/Characterization-and-discrimination-of-some-gem

Another publication is:

Surour, A.A. and Omar, S.A., 2020. Historiography and
FTIR spectral signatures of beryl crystals from some
ancient Roman sites in the Eastern Desert of Egypt.
Environmental Earth Sciences, 79(23), p.520.
PDF - 
https://scholar.cu.edu.eg/sites/default/files/aasurour/files/surour-omar2020_article_historiographyandftirspectrals.pdf
Abstract - https://link.springer.com/article/10.1007/s12665-020-09260-4

Pérez González, J., 2019. Gems in Ancient Rome: Pliny's
Vision. Scripta Classica Israelica, 2019, vol. 38, p. 139-151.
https://diposit.ub.edu/dspace/handle/2445/165038
https://diposit.ub.edu/dspace/bitstream/2445/165038/1/690758.pdf

By the way in my reply to the "superconductivity" article,
I left out the LK-99 Wikipedia page at;

https://en.wikipedia.org/wiki/LK-99

Yours,

Paul H.