The sources and origins of Tanzanite

| 4 min read

Tanzanite, one of the most coveted gemstones in the world, captivates collectors and enthusiasts with its mesmerising hues of blue and violet. As a gemstone that is only found in one location globally, understanding its sources is crucial for making informed purchasing decisions. In this article, we delve into the origins of Tanzanite, its mining locations, and the importance of sourcing high-quality stones, with expert insights from GemCollector, a reputable jeweller renowned for its expertise in Tanzanite.

The Origin of Tanzanite

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Historical Discovery:

The story of Tanzanite's discovery is as fascinating as the gemstone itself. In 1967, a Maasai tribesman named Ali Juuyawatu stumbled upon vibrant blue crystals in the Merelani Hills near Mount Kilimanjaro in Tanzania. Initially, these stones were mistaken for sapphires due to their striking blue colour. However, further analysis by gemologists revealed that these were not sapphires, but an entirely new gemstone species.

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The discovery was brought to the attention of a local fortune hunter named Manuel d’Souza, who subsequently claimed the mining rights to the area. D’Souza sent samples of the gemstone to John Saul, a Kenyan gemologist, who, in turn, sent them to his father, a prominent gemologist in New York. It was Henry B. Platt, the vice president of Tiffany & Co., who named the new gem "Tanzanite" in honour of its country of origin.

Tanzanite's unique and vibrant colour quickly captivated the gemstone market, and Tiffany & Co. began a marketing campaign to introduce this exotic gem to the world. This remarkable find quickly caught the attention of the gemstone market, and its unique beauty propelled it to fame. Today, Tanzanite is celebrated as one of the most significant gemstone discoveries of the 20th century.

Geological Formation: Tanzanite forms under unique geological conditions found at the foothills of Mount Kilimanjaro. The gemstone is a variety of the mineral zoisite and owes its stunning colour to the presence of vanadium within the crystal structure. The combination of intense heat and pressure over millions of years gives Tanzanite its distinctive blue-violet hues. The exclusive geological environment of this region ensures that Tanzanite remains a rare and precious gem.

Tanzanite Mining Locations enter image description here

Tanzania - The Sole Source: Tanzania, specifically the Merelani Hills, is the sole source of Tanzanite in the world. This exclusivity adds to the gemstone's allure and value. The mining region is tightly controlled to ensure the ethical and sustainable extraction of this precious stone.

Mount Kilimanjaro: Tanzanite is mined from the foothills of Mount Kilimanjaro, a location that significantly impacts the gemstone's quality. The unique geological composition of this area results in Tanzanite with exceptional colour and clarity. Stones mined here are renowned for their vibrant blue and violet hues, making them highly sought after by collectors.

Understanding Tanzanite Quality

Grading and Certification: When purchasing Tanzanite, it is essential to consider grading and certification. The Gemological Institute of America (GIA) provides comprehensive grading for Tanzanite, evaluating factors such as colour, clarity, cut, and carat weight. Collectors should prioritise GIA-certified Tanzanite to ensure authenticity and quality.

Colour Variations: Tanzanite displays a remarkable colour spectrum, ranging from deep blue to violet. The quality of the colour is a key factor in determining the gemstone's value. Stones with intense, vivid hues are considered the most valuable. The mining source plays a crucial role in influencing the colour intensity and hue of Tanzanite:

• Mount Kilimanjaro Tanzanite: Tanzanite from this region is renowned for its vibrant blue and violet hues. The unique geological conditions enhance the gemstone's natural colour, making it highly desirable.

• Hatton Garden Tanzanite: Hatton Garden, a historic jewellery district in London, is a significant marketplace for premium quality Tanzanite. The stones traded here are carefully selected for their exceptional colour and clarity, ensuring collectors receive the best.

Conclusion

Understanding the sources of Tanzanite and the factors influencing its quality is crucial for collectors. By choosing a reputable dealer like GemCollector, you can be confident in the authenticity and quality of your Tanzanite purchase. Trust GemCollector to provide expert advice and the finest Tanzanite, helping you make an informed and rewarding investment. you can shop our Tanzanite selection to find your next gem.

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