Physical Features
| Chemical | BeAl2O4 |
| Color | By definition,chrysoberyl must be in the hues of red and green to be called alexandrite. |
| Crystal Habit | Tabular, pseudo-hexagonal |
| Crystal System | Orthorhombic |
| Cleavage | Good in one direction, imperfect in another |
| Fracture | Conchoidal |
| Hardness | 8.5 Mohs scale |
| Luster | Vitreous to Greasy |
| Transparency | Transparent to nearly opaque |
| Specific gravity | 3.70 - 3.72 |
| Refractive index | 1.744 - 1.755 |
| Birefringence | 0.009 |
| Chatoyancy | Yes |
One of the varieties of Chrysoberyl is Alexandrite. Its most attractive feature is that it can change colors during the daylight it appears to be green, however when kept under artificial light it becomes glowing red. Once it was considered to be very rare, but lately it is found in Africa. Discovered in the year 1830, on the birthday of Czar Alexander II it was hence named in his honor. The various powers that this stone exhibits are listed down below:
One of its greatest physical qualities being it heals problems related to the reproductive system or the nervous system. It also acts as a catalyst in regenerating neurological tissue.
If you face any trouble concerning the assessment of your dreams or ambitions it strengthens the willpower and helps you achieve it.
In cases of emotional instability, Alexandrite can prove to be really beneficial. It not only makes you more controlled about your own emotions but also others.
People who take decisions in the fit of anger are frequently advised to wear alexandrite since it calms the mind and helps one think from a logical perspective.
It is believed by many that this gemstone brings good luck for those who own it.
While chanting love spells or rituals if someone wears or keeps alexandrite attached to their bodies it can create wonders.
Besides others, it also helps in bringing happiness, success, the emotion of love and sensuality.
Many also believe in its powers to heal asthma and other difficult diseases such as swelling of the lymph nodes, problems of the spleen etc.
In times of struggle when you are almost on the verge of accepting defeat, Alexandrite will give you the power to hold onto tough phases in life and proceed towards greater good.
This gemstone is available in both online and offline stores.
Alexandrite in Astrology
Ruling planetMercury (also Ketu)
Zodiac signsGemini and Virgo; Scorpio (co-ruler)
ChakraHeart and Crown
Day to wearWednesday
FingerLittle finger
MetalGold or silver
Alexandrite changes colour from green in daylight to red under lamp light and belongs to the chrysoberyl family, like cat's eye.
In Vedic astrology, Alexandrite is linked with Mercury, the planet of intelligence, speech, learning, trade and communication. It also carries some of the energy of Ketu, which governs intuition, spirituality, detachment and protection from hidden troubles. The main gem of Mercury is Emerald (Panna); Alexandrite is a gentler, more affordable stone that people choose to support the same planet.
Benefits of Wearing Alexandrite
- Supports adaptability and good judgement
- Encourages self-confidence
- Said to bring luck in business
- Strengthens the positive results of Mercury: intelligence, speech, learning, trade and communication
Crystal and gemstone benefits are traditional beliefs and are not a substitute for medical or professional advice.
How to Wear Alexandrite
- Weight: there is no strict rule; a stone of 5 to 7 carats in a ring, or any comfortable size in a pendant or bracelet, is common.
- Metal and finger: set it in gold or silver and wear it on the little finger of your working hand.
- Day and time: wear it for the first time on a Wednesday, in the morning, preferably during the Shukla Paksha (waxing Moon).
- Purify: dip the ring or pendant in raw milk mixed with Ganga jal (or clean water) for a few minutes, then rinse it.
- Energise: light a lamp, face east and chant the Mercury mantra 108 times: Om Braam Breem Braum Sah Budhaya Namah.
Who Should Wear Alexandrite?
- People whose Moon sign or Ascendant is Gemini and Virgo, ruled by Mercury.
- Anyone running the Mercury Mahadasha or Antardasha, when Mercury is a helpful planet in the chart.
- People who want more of Mercury's qualities: intelligence, speech, learning, trade and communication.
Use care when combining stones: stones of Mercury, Venus, Saturn, Rahu and Ketu work well together, but are usually not combined with stones of the Sun, Moon or Mars.
Care and Cleaning
Alexandrite is a hard, durable stone (about 8.5 on the Mohs scale) and suits everyday rings. Clean it with lukewarm water, mild soap and a soft brush; avoid sudden temperature changes. Many people also re-energise their stone once a month by placing it in moonlight or chanting the planet's mantra.
Tips for Buying Alexandrite
- Choose a natural, untreated stone; heated, dyed, glass-filled or synthetic stones are not considered astrologically effective.
- Ask for a lab certificate from a recognised gem laboratory.
- Good colour, clarity and a clean cut matter more than size.
- Buy from a trusted seller who explains the origin and any treatment of the stone.
Common Questions
Can I wear Alexandrite without a horoscope check?
Alexandrite is a gentle stone and is generally safe to wear. For the best results, check that Mercury is a helpful planet in your horoscope.
Which finger should I wear Alexandrite on?
Traditionally on the little finger, set in gold or silver, first worn on a Wednesday.
How long does Alexandrite take to show results?
Many people notice a difference within a few weeks, though astrologers say the full effect builds over a few months of regular wear.