Quick Facts on Alexandrite Stone
| Chemical Formula |
: | BeAl2O4 |
| Mineral |
: | Chrysoberyl |
| Color |
: | Green or bluish-green, red in artificial light |
| Hardness |
: | 8.5 |
| Specific Gravity |
: | 3.64-3.74 |
| Refractive Index |
: | 1.759 - 1.778 |

Alexandrite stones are among the rarest and the most expensive stones on the earth and a form of chrysoberyl. Chrysoberyl is the mineral that consists of colorless or yellow chrysoberyl. But it differs from other chrysoberyl as it not only contains iron and titanium impurities but also chromium. Its color changing ability is because of chromium.
Its surprising ability to change its color is the most fascinating feature alexandrite. Because of this reason the finest quality of alexandrite stones are very expensive.
As per astrologers if you are born under sign of Scorpio you should wear this magical natural alexandrite stone.
Alexandrite Stone Meaning
As compare to other stones, Alexandrite stone is quiet a recent gemstone that has been discovered about 150 years ago. Alexandrite stone is quiet a rare stone that was named after Alexander II of Russia.
The gemstone can change its color that is a very unusual phenomenon. The stone appears bright green in color but the color changes to bright red when seen in candlelight or reddish light. So in artificial light this stone appears to be very dark.
Alexandrite Stone History
Alexandrite stone was discovered in April 1834 in the emerald mines Russia. Ural mountains of Russia is their earliest source and then it became the favorite stone of Russian royal family. Alexandrite was named after the Russian Czar, Alexander II as its discovery was made on the day the future tsar came of age.
Occurrence and Structure
Russia is the primary source of alexandrite stone. In 1987, alexandrites were discovered at Hematita in Minas Gerais, Brazil. But the color of Brazilian alexandrite is not as strong as the Russian alexandrite stone but it does show the property of color change. Hematita today is becoming a popular resource of alexandrite stone.
Sri Lanka is another place where Alexandrite stone is mined but this is less popular. In addition to these places alexandrite is also found in Myanmar, Tanzania and India
Like other gemstones alexandrite has also emerged millions of years ago under extreme metamorphic environment but the formation of stone takes places under specific geological conditions. Beryllium, which is the chemical element and a chief constituent in chrysoberyl and chromium, the colouring agent in alexandrite do not occur at same place naturally as they have very contrasting chemical characteristics. So these are found in different rocks. But in alexandrite these two come together naturally and thus results in the most scarce and rarest gem stone.
Alexandrite Stone Healing and Mystical Properties
Alexandrite stone is associated with many mystical and magical properties as it is believed that this stone can bestow the wearer with money, prosperity and good luck. Alexandrite stone also a very good gemstone for scientists, explorers, mathematicians and atomic scientists.
Alexandrite stone protects the wearer from unexpected dangers of life. Yellow color in alexandrite stone shows that the wearer is in danger or will face some sort of illness. It is also known as Russian prophetic stone.
In Europe alexandrite stone is considered as the stone that symbolises amorousness and jealousy.
In India and Sri Lanka it is considered as the stone of good luck and longevity.
Alexandrite stone affects the nervous system and it is thought that its two colors represents the two types of blood in man - venous and arterial. Alexandrite thus increases the blood circulation, purifies the blood and provides strength to the blood vessels.
Some people also believe that alexandrite prevents the habit of hard drinking and even cures leprosy.
Alexandrite stone also brings happiness, success and intense feeling of love.
It helps in dealing with death and rebirth situations. It assists in self-balancing and empowering.
Alexandrite stone can treat pancreatic disorders, swollen lymph and problems in spleen.
How to Buy Alexandrite Stone?
Color-Change
More the dramatic change in color more is the price of alexandrite stone. You will get a lab certificate showing the percentage change in color, with 100% being ideal.
Color-hues
Alexandrite stone like many other gemstones is available in different colors but the bright colors and hues are the most desirable ones. The most expensive ones are in red and green hues.
Alexandrite Size
It is very hard to find large alexandrite stone so over 1 carat is rare and naturally more expensive. Even these are then expensive than the similar quality of diamond.
Clarity
An ideal alexandrite stone comes with little or no internal imperfections.
Cut
Although value of alexandrite stone increases with the perfect cut but the cut is not that important for alexandrite as in other gemstones.