Abstract
We report the recently encountered two clusters of synthetic alexandrite and emerald. This alexandrite was synthesized by Chatham in U.S.A. This emerald was synthesized by the laboratory at Novosibirsk in Russia.
These clusters could observe the other crystal as follows.
1) The synthetic alexandrite of the Chatham.
In the surface of the synthetic alexandrite, platinum and colourless synthetic phenakite are seen and in the bottom of its, the synthetic ruby is seen.
2) The synthetic emerald of the laboratory at Novosibirsk in Russia
The synthetic alexandrite identified by the X ray diffraction with cluster of this synthetic emerald.
