Tanzanite

La tanzanite is a gemstone of rare beauty, known for its captivating colours and unique history. First discovered in 1967 in the Merelani Hills, near Mount Kilimanjaro in Tanzania, the gem quickly became one of the world's most prized gems. Tanzanite is a blue and purple variety of zoïsite, a mineral belonging to the silicate group. It is particularly appreciated in the field of luxury jewellery for its exceptional colour, brilliance and rarity.

Distinctive features

Tanzanite is distinguished by its trichroismThis is an optical property that allows it to show three different colours when viewed from different angles. These colours are generally blue, violet and red. The colour of tanzanite can vary according to the light, which makes it even more fascinating. In natural light, it often appears bluer, while in artificial light it can reveal more pronounced violet tones.

Training and extraction

Tanzanite is formed under specific and rare geological conditions, which contributes to its rarity. It is found mainly in a very limited area of northern Tanzania, making it an extremely rare and exclusive gemstone. Extracting tanzanite is an arduous task and requires specialised mining techniques. Tanzanite deposits are limited, and experts estimate that current reserves could be exhausted within the next 20 to 30 years, further increasing the value of this precious stone.

Use in jewellery

In jewellery, tanzanite is often used to create unique and luxurious pieces. It is particularly popular in ringsthe braceletsthe necklaces and earrings. Jewellers appreciate tanzanite for its ability to be cut into different shapes, allowing them to create a variety of personalised designs. Tanzanite is also often combined with precious metals such as white gold, yellow gold and platinum, further enhancing its natural beauty.

Maintenance and precautions

Although tanzanite is hard (6.5 to 7 on the Mohs scale), it is more fragile than some other precious stones such as diamonds and sapphires. It is therefore essential to take certain precautions to avoid knocks and scratches. To clean tanzanite, use lukewarm water, mild soap and a soft-bristled brush. Avoid ultrasonic cleaners and harsh chemicals, which could damage the stone.

Value and investment

Tanzanite is an excellent stone for investment because of its rarity and beauty. High-quality stones, particularly those with intense colour and exceptional clarity, can fetch very high prices on the market. Each piece of tanzanite is unique, and its value can increase over time, especially if reserves continue to decline.

Frequently asked questions about tanzanite

What is the significance of tanzanite?

Tanzanite is often associated with spirituality and personal transformation. It is considered a stone that can help awaken intuition and strengthen psychic abilities.

How do you recognise quality tanzanite?

Quality tanzanite is distinguished by its intense colour, clarity and size. The most precious stones are those with a deep blue colour with shades of violet and high transparency.

Is tanzanite more precious than sapphire?

The value of tanzanite and sapphire depends on several factors, such as colour, clarity, size and market demand. However, because of its rarity, tanzanite can sometimes be more valuable than sapphire.

Can you wear tanzanite every day?

Although tanzanite is durable, it is more fragile than some other gemstones. It is therefore advisable to wear it with care and avoid activities that could cause shocks or scratches.

In conclusion, tanzanite is an exceptional gemstone that captivates by its beauty and rarity. Whether used in luxury jewellery or as an investment, it offers priceless value and timeless elegance.