Alexandrite is a color change-variety chrysoberyl and is considered one of the rarest gemstones in the world. According to GIA,Alexandrite’s finest dual colors are a vivid grass green in daylight and fluorescent light, and an intense raspberry red in incandescent light.
What type of stone is alexandrite?
Often described by gem aficionados as “emerald by day, ruby by night,” alexandrite is the very rare color-change variety of the mineral chrysoberyl. Originally discovered in Russia’s Ural Mountains in the 1830s, it’s now found in Sri Lanka, East Africa, and Brazil, but fine material is exceptionally rare and valuable.
What family is alexandrite in?
Alexandrite is a member of the chrysoberyl family of minerals, prized because of its enchanting ability to change color.
Is alexandrite a corundum?
Corundum-based simulated alexandrite
Most gemstones described as synthetic alexandrite are actually simulated alexandrite: Synthetic corundum laced with vanadium to produce the color change. … Gemological testing will reveal a refractive index of 1.759–1.778 (corundum) instead of 1.741–1.760 (chrysoberyl).
What kind of mineral is alexandrite?
Alexandrite is a very rare mineral variety of chrysoberyl (BeAl2O4), which occurs in granitic pegmatites and mica schists. Small scale replacement in chrysoberyl of alumina by chromic oxide results in the formation of the variety alexandrite and is responsible for alexandrite’s characteristic green to red color change.
How do you tell if a stone is an alexandrite?
The first way to check if the stone you have is in fact a real alexandrite is to test the color change in different lighting. In bright light, it should appear emerald green and in dim light, it should look red or purple. If this is not clearly visible, you may not have an alexandrite.
Is alexandrite a semi precious stone?
Every other gemstone that isn’t one of those four is considered to be semi precious. The list goes on and on, but some of the more common ones are: alexandrite, agate, amethyst, aquamarine, garnet, lapis lazuli, moonstone, opal, pearl, peridot, rose quartz, spinel, tanzanite, tourmaline, turquoise and zircon.
Do all alexandrite stones change color?
Not all color-change chrysoberyl is alexandrite, despite the assurances of sellers. … If any other color-change combinations are observed, the stone should be identified as a color-change chrysoberyl. A classic alexandrite color change: Green in daylight to slightly purple Red in incandescent light.
Why does June have three birthstones?
Why does June have 3 birthstones? The main reason why some months have multiple birthstones is because various ancient stones have become too rare, so it is less likely for them to be available on the market and to satisfy consumer needs.
What does alexandrite symbolize?
Alexandrite is the gemstone of luck, prosperity, and intellect. It represents the balance between the physical and the spiritual, and can bring you into the balance of who you are. Alexandrite is a relatively new gemstone. It was discovered in Russia in the 1830’s.
Is alexandrite a sapphire?
Synthetic color change sapphires may look like alexandrite stones, but in terms of their structure, they are nothing alike. That’s because alexandrite is a variety of the chrysoberyl mineral and is not a sapphire, which is a completely different mineral.
What does a real alexandrite look like?
Real alexandrite is a green color under sunlight or fluorescent light and changes to a red/purple color under incandescent light.
Does alexandrite scratch easily?
Gem and mineral hardness is measured on the Mohs scale. The numbers are based on the relative ease or difficulty with which one mineral can be scratched by another. … Alexandrite is relatively hard—8.5 on the Mohs scale.
Is alexandrite a gemstone?
Alexandrite is a variety of the gem species chrysoberyl, well-known for its chatoyancy or “cat’s eye” effect when cabbed.
Is an alexandrite a crystal?
The history of Alexandrite is an interesting one. This very rare gemstone is named after the Russian tsar Alexander II (1818-1881). The very first crystals were said to have been discovered in April 1834 in the emerald mines near the Tokovaya River in the Urals.
Is Alexandrite more expensive than diamonds?
While there may be many key differences between Alexandrite and diamond, but they are quite similar in value. Both gemstones are generally expensive and it is common to find Alexandrite jewelry that costs the same as diamonds. Alexandrite is getting even more expensive due to its rarity as supply steadily declines.