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Alexandrite

Tsarstone collectors guide


Alexandrite

Alexandrite
Named after Russian Tsar Alexander II. A highly dichroic, rare variety of chrysoberyl. Emerald green in natural daylight, reddish in violet by artificial light, due to its unusual absorption properties. One of the hardest and most important gemstones. A fine variety is the night stone. Iron-rich varieties are yellow, green and brown in color, and are inert under UV light or X-rays. Only alexandrite exhibits a weak, red luminescence under SWUV light. Synthetic alexandrites are produced by the Czochralski, the puling method, the flux process, and the floating-zone method.
Alexandrine
Alexandrine
www.alexandrite.net/chapters/glossary/alexandrine.html
Alexandrite cat's eye
Alexandrite cat's eye
www.alexandrite.net/chapters/glossary/alexandrite-cat-s-eye.html
Alexandrite doublet
Alexandrite doublet
www.alexandrite.net/chapters/glossary/alexandrite-doublet.html
Alexandrite garnet
Alexandrite garnet
www.alexandrite.net/chapters/glossary/alexandrite-garnet.html
Alexandrite inclusions
Alexandrite inclusions
www.alexandrite.net/chapters/glossary/alexandrite-inclusions.html
Alexandrite twinning
Alexandrite twinning
www.alexandrite.net/chapters/glossary/alexandrite-twinning.html
Alexandrite-like synthetics
Alexandrite-like synthetics
www.alexandrite.net/chapters/glossary/alexandrite-like-synthetics.html
Alexandrium
Alexandrium
www.alexandrite.net/chapters/glossary/alexandrium.html
Aluminum
Aluminum
www.alexandrite.net/chapters/glossary/aluminum.html
American Gem Society
American Gem Society
www.alexandrite.net/chapters/glossary/american-gem-society.html

Tags

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