Photochromism and Photochromic Gems: A Review and Some New Data (Part 1)

The Journal of Gemmology ◽

10.15506/jog.2021.37.8.780 ◽

2021 ◽

Vol 37 (8) ◽

pp. 780-800

Author(s):

Féodor Blumentritt ◽

Emmanuel Fritsch

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