[Rockhounds] Rubies and Jadeite, the Gemstones of Plate Tectonics

[Paul]

Stern, R.J., Tsujimori, T., Harlow, G., and Groat, L. A.,
2013. Plate Tectonic Gemstones. Geology 41, 723-726.
http://www.utdallas.edu/~rjstern/pdfs/SternGeology13.pdf
http://www.utdallas.edu/~rjstern/publications.html
https://www.researchgate.net/publication/247777702_Plate_tectonic_gemstones

Plate Tectonic Gemstones: Jadeite, Ruby, and Diamond – Robert Stern
https://dcgia.org/2014/10/30/plate-tectonic-gemstones-jadeite-ruby-and-diamond-robert-stern/

Yours,

Paul H.