Karl Schmetzer, Adolf Peretti, September 1, 1996
Synthetic alexandrite is being flux-grown in Russia.
Read MoreE. Gübelin and K. Schmetzer, December 1, 1982
The term "alexandrite effect" refers to the apparent change of colour in certain minerals from blue-green or greenish violet in daylight to red or reddish violet in incandescent light.
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