Tanzanite and its properties.
Tanzanite is truly spectacular and this precious gemstone is found only in one location in the world, Tazania Africa.
In the light of day, deep electric blues evoke that “love at first sight” feeling, and then by the evening its purples, violets and reds ignite a sense of passion. A gemological and geographic phenomenon.
It is now claimed to be 1000 times rarer than diamonds. It is the blue variety of Zoisite. Even though Zoisite occurs in many places it requires the geological conditions that allow the gem to turn into this special blue colour. These conditions are so rare that they have been described as “more special than the gem itself“.
The gem is extremely sought-after due to its trichroic nature. This means that in Tanzanite the colours blue, pinkish violet and pink can be seen when looking at the gemstone from different angles. As with many other gemstones, the darker, more vivid the colour, the more valuable it becomes. There may also be a slight colour change when viewed in incandescent light (such as that from a light bulb) when stones may appear violet.
Dark blue Tanzanite is now among the most desired gems in the world and therefore one of the more expensive. It is often talked about and compared with Diamonds for this reason.
It was discovered in 1967 on a small scale and soon became a favourite of Tiffany’s where it was named “Tanzanite”.
In an industry where colour has become a critical factor, for jewellery buyers and designers alike, Tanzanite plays an important role. For many people a large blue Sapphire would be too expensive to contemplate. However, a large blue Tanzanite provides a colourful alternative that normally is a little easier on the pocket.
The stone is traditionally heat treated to produce a more attractive and intense blue and to lose any greenish tones. Tanzanite cat’s-eyes are rarely found. In the only deposit in Tanzania it occurs in veins or filling of gneises. It is normally facet cut when used in jewellery.
It is often worn as an anti-depressant due to the nurturing, emotionally supportive and cheering energies it is said to bestow. It was added by the Gemological Institution of America in 2002 as the “Birthstone of December“.
The mines in Tanzania are running low and some have even closed down. It has therefore become much harder to obtain and will I am sure increase in value dramatically in the future.
To me it is one of the most beautiful gemstones available and is now found in most types of jewellery. Mainly found in rings but more recently, as more is learned about the ways to facet and cut it, it can be obtained in earrings, pendants, bracelets and necklaces.
Now is the time to think strongly about adding some to your collection before it becomes unobtainable.