The mining of alexandrite in Russia lasted less than 100 years from the time it was discovered in 1833 to the early 1900’s. It was George Kunz, the gemologist/gemstone buyer for Tiffany & Co that probably did the most to popularize this unique gemst
Chrysoberyl is the species name and Alexandrite is the variety name. Alexandrite is that variety of chrysoberyl that changes color as a function of the light source; green in daylight and red under incandescent light.
David Weinberg.
"Discussion".
In Alexandrite Tsarstone Collectors Guide. August 12, 2011, 01:18 UTC.
Available at: http://w.alexandrite.com/viewpage.html?id=WRC-044.
Accessed August 07, 2026.
APA style
"Discussion".
(2011, August 12). In Alexandrite Tsarstone Collectors Guide. Retrieved 01:05, August 07, 2026, from http://w.alexandrite.com/viewpage.html?id=WRC-044.
Bluebook style
"Discussion", http://w.alexandrite.com/viewpage.html?id=WRC-044 (last visited August 07, 2026).
Bluebook: Harvard JOLT style
See Alexandrite Tsarstone Collectors Guide, "Discussion", http://w.alexandrite.com/viewpage.html?id=WRC-044 (Discussion) (as of Aug. 07, 2026, 01:05 GMT).
CBE/CSE style
David Weinberg. "Discussion".
In Alexandrite Tsarstone Collectors Guide. 2011 Aug 12, 01:18 UTC.[Internet], Alexandrite Tsarstone Collectors Guide; 2011 Aug 12, 01:18 UTC [cited 2026 Aug 07]. Available from: http://w.alexandrite.com/viewpage.html?id=WRC-044.
Chicago style
David Weinberg, "Discussion", http://w.alexandrite.com/viewpage.html?id=WRC-044, (accessed August 07, 2026).
MLA style
"Discussion". Alexandrite Tsarstone Collectors Guide. 12 Aug 2011, 01:18 UTC. 07 Aug 2026 http://w.alexandrite.com/viewpage.html?id=WRC-044
MHRA style
David Weinberg, "Discussion", Alexandrite Tsarstone Collectors Guide, 12 August 2011, 01:18 UTC, http://w.alexandrite.com/viewpage.html?id=WRC-044 [accessed 07 August 2026].