December Birthstone: Exploration of Tanzanite Jewels
Article Title: Tanzanite: The Rare and Exquisite December Birthstone
Tanzanite, a gemstone of deep blue to violet and purplish hues, is a rare and exclusive treasure found only in Tanzania. This trichroic gemstone, displaying blue, violet, and burgundy colors depending on the angle, is often heat-treated to enhance its vibrant color [1, 2].
With a hardness of 6–7 on the Mohs scale, tanzanite is somewhat softer and less durable than many other gemstones commonly used in jewelry [1]. As a result, it requires gentle handling and careful care. Cleaning should be done with mild soap and warm water, and it should be protected from harsh chemicals and abrasive surfaces. Ultrasonic cleaners and steam cleaning should be avoided to prevent damage [3, inferred based on hardness].
Comparing Tanzanite with other December birthstones, turquoise offers a distinctive opaque look with softer hardness (about 5-6). Turquoise is less hard than tanzanite and is more porous, requiring careful care to avoid exposure to oils, chemicals, and prolonged sunlight. Blue iolite shares some pleochroic properties with tanzanite but is slightly harder and more durable, with a hardness of around 7–7.5 [general gem knowledge supplemented].
On the other hand, blue sapphire ranks much higher on the Mohs scale at 9, making it extremely durable and ideal for everyday wear. Unlike tanzanite, sapphires are found worldwide and are more scratch-resistant and better suited for daily use [1, 3].
Tanzanite is beloved for its rich coloration but is best worn in jewelry for occasional wear or set into earrings and necklaces to protect it from damage. The initial slogan related to the sale of tanzanite was "in Tanzania and Tiffany's" [2].
The rarity and limited geographic origin of tanzanite contribute to its investment appeal, whereas sapphires and turquoise are more common globally [2]. Each December birthstone offers unique aesthetic and physical properties influencing their care and suitability for different types of jewelry.
References:
[1] GIA (Gemological Institute of America). (n.d.). Tanzanite. Retrieved from https://www.gia.edu/tanzanite
[2] Tanzanite Foundation. (n.d.). The History of Tanzanite. Retrieved from https://www.tanzanite.com/history
[3] International Gem Society. (n.d.). Turquoise. Retrieved from https://www.gemsociety.org/gems/turquoise
[3] International Gem Society. (n.d.). Blue Iolite. Retrieved from https://www.gemsociety.org/gems/blue-iolite
[3] International Gem Society. (n.d.). Blue Sapphire. Retrieved from https://www.gemsociety.org/gems/blue-sapphire
- The Tanzanite Foundation highlights the history of this rare gemstone, showcasing its association with both Tanzania and Tiffany's.
- To appreciate the beauty of tanzanite and protect its vibrant color, courses and workshops on gemmology can provide valuable insights on its care and handling.
- For those interested in expanding their knowledge beyond gemstones, publications on lifestyle, fashion-and-beauty, and home-and-garden topics can offer a diverse range of educational resources.
- As a membership of a gemmology foundation can offer access to exclusive events, research, and networking opportunities, it may enhance one's understanding and appreciation of precious gems like tanzanite.
