Alexandrite History Coloring Pages
The color changing property of Alexandrite is known as Alexandrite effect and is a result of chromium traces found in the gemstone. However it occurs very rarely and mostly in newer finds in Africa.
Alexandrite Gemstone Information At Ajs Gems
The color change phenomenon seen in alexandrite is referred to as the alexandrite effect.
Alexandrite history coloring pages. In 1833 a sample of minerals found in the emerald mines of the Urals was sent to Nils Gustaf Nordenskjold a Finnish mineralogist. The popular claim is that alexandrite was discovered on the 16th birthday of future Tsar Alexander II. Alexandrites from Brazil boast 100 color change and are therefore the most prized.
The blue-to-purple color change in your gem does occur in natural alexandrites. The change in color can be observed under certain lighting conditions typically under daylight and incandescent lighting. THE HISTORY OF RUSSIAN ALEXANDRITES.
Your color shift more likely indicates a hydrothermally lab-grown alexandrite. Alexandrite effect is the phenomenon of an observed color change from greenish to reddish with a change in source illumination. Antique diamond ring color change alexandrite engagement ring rose gold alexandrite ring gold vintage unique wedding ring band promise ring Ohjewel.
Alexandrite results from small scale replacement of aluminium by chromium ions in the crystal structure which causes intense absorption of light over a narrow range of wavelengths in the yellow region 580 nm of the visible light spectrum. This color was produced periodically during the lifetime of the Heisey company. In the Ural mountains of Russia in 1830 a miraculous stone first saw the light of day.
The chromium traces cause strong light absorption in the yellow and blue parts of the spectrum. What made this stone so special for the Russian people was its almost magical color change from a. Slight variations in the colors such as change from yellowish green to brownish red or orange are often seen and they are accepted as alexandrites.
The most drastic color changes are the most desirable as if you were watching a traffic light change color. In fact it was discovered earlier than that. Alexandrite is also a strongly pleochroic gem.
The absorption band 580 nm allows the Alexandrite to change color from red to green when seen under different light. It can display emerald green red orange and yellow colors depending on which angle the stone is viewed from. Often described by gem aficionados as emerald by day ruby by night alexandrite is the very rare color-change variety of the mineral chrysoberyl.
5 out of 5 stars 157 Sale Price 14320 14320 17900 Original Price 17900. Alexandrite is the month of Junes Birthstone. Its Finnish discoverer initially mistook it for emerald before realizing it changed colors.
According to GIA Alexandrites finest dual colors are a vivid grass green in daylight and fluorescent light and an intense raspberry red in incandescent light. Alexandrite is bluish green in daylight and a purplish red or reddish purple in candle light or incandescent light. Alexandrite became extremely popular in imperial Russia both with the royal family and the aristocracy because of its association with the Tzar and also because red and green were the royal colors of the Russian Empire.
Unique Color-Change Alexandrite Ring Full Eternity Wedding Band Sterling Silver Alexandrite Ring Band Ring Wedding Band Gift for her JeweloveStore 45 out of 5 stars 12 Sale Price 18999 18999 37999 Original Price 37999. The green could be with a shade of blue and the purple color could have a dash of blue or red. Usually there is a color bleed through from one color to the other or there is too much impurity to start with to permit such a drastic color change.
Much Amber was made for Fred Harvey both for railroad and restaurant use. The classical color change of alexandrite would be from green to purple. Originally discovered in Russias Ural Mountains in the 1830s its now found in Sri Lanka East Africa and Brazil but fine material is exceptionally rare and valuable.
Alexandrite with its chameleon-like qualities is a rare variety of the mineral chrysoberyl. Its color can be a lovely green in daylight or fluorescent light changing to brownish or purplish red in the incandescent light from a lamp or candle flame. Since your ring is over 50 years old your stone likely didnt come from these finds.
Many modern sources frequently use emerald by day ruby by night to romanticize Alexandrites color. Found on the 12th birthday of a Russian Crown prince later to become Czar Alexander II it was named Alexandrite and has become the June birthstone. The controversial history of alexandrite dates back to Imperial Russia where it was first discovered in emerald mines near the Tokovaya River in the Ural Mountains.
Other items were produced in Alexandrite but the ones mentioned above are the most common in this color.
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