beryl, chrysoberyl, beryl, emerald, alexandrite, Russia, Urals, Malysheva, gems

Александрит (Eng. Alexandrite) — a monograph written by Russian scientist, Candidate of Technical Sciences Yury Sergeyevich Kozlov and published by the Russian Academy of Sciences publishing house Nauka". The monograph addresses topics related to the geology, mineralogy, and crystallography of the rare Group I gemstone — alexandrite. Special sections are dedicated to the study of alexandrite crystals using X-ray spectral analysis and IRL methods. The book includes tables of cathodoluminescence spectra of faceted reference samples, as well as data from international price catalogs on alexandrites. Of particular interest is the large volume of photographs and certificates of faceted specimens from the author’s personal collection."