The Journal of Gemmology - Volume 37 No. 2 2020

Chemical data to accompany the article:

Vigier, M. & Fritsch, E. 2020. Pink axinite from Merelani, Tanzania: Origin of colour and luminescence. Journal of Gemmology, 37(2), 192–205,


Text-format x,y data to accompany the UV-Vis-NIR spectra in the article:

Ounorn, P., Srisataporn B. & Cheewaporn, S. 2020. Gem Notes: Laurentthomasite, a new gem mineral. Journal of Gemmology, 37(2), 136–139.

Laurentthomasite o-ray
Laurentthomasite e-ray