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2. Alexandrite effect - Wikipedia

   en.wikipedia.org/wiki/Alexandrite_effect

   The Alexandrite effect has also been observed in some other minerals, such as fluorite, sapphire, kyanite, monazite, spinel, garnet, tourmaline, and rare-earth oxalates. Not to be confused with the alexandrite effect, some minerals also exhibit pleochroism. The former is a response to different wavelengths of light in general, the latter an ...

3. June Actually Has 3 Birthstones—Here's What They Are ... - AOL

   www.aol.com/june-actually-3-birthstones-heres...

   Well, the month of June means not one, not two, but three of the most gorgeous birthstones of the year: the classic pearl, the celestial moonstone and the ultra-rare alexandrite. These glam gems ...

4. Lustre (mineralogy) - Wikipedia

   en.wikipedia.org/wiki/Lustre_(mineralogy)

   Alexandrite displays a colour change dependent upon light, along with strong pleochroism. The gem results from small-scale replacement of aluminium by chromium oxide, which is responsible for alexandrite's characteristic green to red colour change. Alexandrite from the Ural Mountains in Russia is green by daylight and red by incandescent light ...

5. The Best Birthstone Jewelry for Your Birthday Month - AOL

   www.aol.com/best-birthstone-jewelry-birthday...

   June is either pearl, moonstone, or alexandrite, symbolizing creativity, purity, sincerity, and "fresh beginnings," as Yessayan puts it. Leach notes that each stone offers a different quality ...

6. Chrysoberyl - Wikipedia

   en.wikipedia.org/wiki/Chrysoberyl

   Main chrysoberyl producing countries. The mineral or gemstone chrysoberyl is an aluminate of beryllium with the formula Be Al 2 O 4. [5] [6] The name chrysoberyl is derived from the Greek words χρυσός chrysos and βήρυλλος beryllos, meaning "a gold-white spar".

7. Topaz - Wikipedia

   en.wikipedia.org/wiki/Topaz

   Topaz is a silicate mineral made of aluminum and fluorine with the chemical formula Al 2 Si O 4 (F, OH) 2.It is used as a gemstone in jewelry and other adornments. Common topaz in its natural state is colorless, though trace element impurities can make it pale blue or golden brown to yellow-orange. [7]

8. Pleochroism - Wikipedia

   en.wikipedia.org/wiki/Pleochroism

   Pleochroism of cordierite shown by rotating a polarizing filter on the lens of the camera Pleochroism of tourmaline shown by rotating a polarizing filter on the lens ...

9. What Is a Yule Log, and What Does the Tradition Symbolize?

   www.aol.com/lifestyle/yule-log-does-tradition...

   During the early solstice celebrations, burning a specific log became part of the festivities. Like the word “yule,” the log became associated with the Christmas season.