Gemstones carry mighty significance in astrology. And onyx is a particularly powerful example.

For thousands of years, its magical and practical purposes have captivated people and been put to vital use, bringing good luck, changes to fortunes and improved health among many benefits.

The word onyx comes from Greek or Latin, and means claw or fingernail. Legend has it they are the clippings of Venus, which fell to Earth when her nails were clipped by her son Cupid.

In astrology, this beautiful stone is ruled by Mars and Saturn, and is of added significance for those born under the zodiac sign Leo. It is known for its protective qualities, due to its ability to absorb negative energy, bringing strength and stability, and is said to increase decision-making and self-control.

It is linked to grounding and steadiness, and because it is believed to increase stamina, it is also associated with strength (both physical and mental).

As a gemstone, onyx is related to self-control and willpower, and therefore has the properties to control and manage your sexual impulses. The ability to resist temptation allows a person to remain on track with personal goals and ambitions.

Onyx can also encourage a person to think more deeply about their actions. Its power to aid self-analysis helps with self-reflection and can help personal transformation. It can heal, keep your mind clear during meditation, and redirect negative energy into positive action.

The gemstone is also associated to the root Chakra, found at the base of the spine. Its position there allows it to boost feelings of security, tackle anxiety and boost overall mental wellbeing. It can also turbo-charge physical wellbeing by encouraging healthy energy flow in the body.

Another key property of the gemstone is its ability to eliminate fear. In bygone days, men of war would keep the gemstone on them to instill fearlessness before and during battle.

The stone is a type of Chalcedony, and while its most common colour is black, onyx stones also come in pink, brown, beige, red, white and green. The green onyx has much to offer, and is believed to have extra significance, power and importance. It enhances self-control, intuition and can boost confidence. It is a stone of purity and peace, growth, balance and health.

The green variant of the gemstone has many qualities which it does not share with its black counterpart. For example, this gemstone enjoys a special link to the heart chakra, which can impact matters of the heart and the capacity to love and bond with. This can range from romance, to having the strength to face fears, or the courage to take on a new challenge.

The beautiful emerald-like green colour means this gemstone is popular in jewellery – it is usually used as a ring or necklace, while bracelets and anklets are also popular ways of wearing the stone and reaping its mystic benefits.