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Alexandrite

Tsarstone collectors guide

alexandrite change color does why

1. Alexandrite Frequently Asked Questions
Answers to frequently asked questions about alexandrite gemstone identification and value.
HTML, 46 Kb, 2008-07-20 12:02:11
/chapters/faq/index.html
2. Alexandrite Buyer's Guide
Comprehensive guide for buying and evaluating alexandrite gemstones
HTML, 77 Kb, 2008-07-20 13:02:02
/chapters/chapter9/index.html
3. Why does alexandrite appear to change color in sunlight and artificial light?
Alexandrite is a trichroic gemstone which absorbs and reflects light differently in each of its three optical directions. Spectroscopic analysis reveals a different absorption spectrum for each of the three optical directions. The differences in absorptio
HTML, 26 Kb, 2008-07-29 08:10:46
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4. Re: In need of Help Identifying... at Alexandrite discussion forums | Alexandrite guide
Re: In need of Help Identifying... at Alexandrite discussion forums | Alexandrite guide
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