Exploring the Mysteries of Tanzanite: A Glimpse into Its Properties and Origins
Nestled at the foothills of Mount Kilimanjaro, in the Merelani Hills of northern Tanzania, lies a geological marvel - the Tanzanite gemstone. Discovered in 1967, this captivating gemstone has since captured the hearts of gem connoisseurs worldwide[1][2][3].
A Rarity Among Rarities
Tanzanite's rarity and high value are primarily due to several key factors. Firstly, it is found exclusively in a very small area near Mount Kilimanjaro, covering roughly 7 square kilometers[1][2][3]. This singular geographic source makes it a true geological rarity.
Secondly, Tanzanite is estimated to be about 1,000 times rarer than diamonds[1][3][4]. The limited quantity combined with high demand escalates its value. Additionally, it is projected that known mines may be depleted within 20–25 years, which further enhances its rarity and future value prospects.
A Stone of Striking Colour and Unique Optical Properties
Tanzanite exhibits a remarkable blue to violet color range that is highly sought after. It is pleochroic (trichroic), meaning it shows different colors (blue, purple, burgundy/red) when viewed from different angles due to vanadium and chromium in its crystal structure[2][3]. Stones with deeper, purer blue tones tend to be the most valuable.
The strong pleochroism causes tanzanite’s color to shift, adding to its unique optical allure and desirability[3].
Market Perception and History
Tanzanite was rebranded from "blue zoisite" by Tiffany & Co. in the 1960s, which helped establish it as an exclusive, prestigious gemstone. The marketing, combined with its singular origin and rarity, maintains its luxury status and high value[3].
Stone Size and Quality
Larger tanzanite stones are far rarer and command disproportionately higher prices. Additionally, stones with high clarity, deep color saturation, and quality cuts are valued more highly[3].
A Word of Caution
Tanzanite is not a particularly hard stone, and as such, it may not be the most suitable stone for everyday wear. Before purchasing a piece of tanzanite jewelry, it is important to use a 10x loupe to examine the cut, clarity, and any presence of chips or cracks, and to compare a number of stones to gauge the hue and saturation of color.
The Future of Tanzanite
The majority of tanzanite on the market today is heat-treated to enhance its color and marketability. As the remaining supply dwindles, the demand for this unique gemstone is expected to continue to grow, making it an exciting investment opportunity for gemstone enthusiasts.
[1] Geology.com. (2021). Tanzanite. https://www.geology.com/rocks/tanzanite.shtml
[2] GemSelect. (2021). Tanzanite. https://www.gemselect.com/gemstones/tanzanite.html
[3] GIA. (2021). Tanzanite. https://www.gia.edu/tanzanite
[4] Minerals.net. (2021). Tanzanite. https://www.minerals.net/mineral/tanzanite.aspx
- The Foundation of Gemmology and Education-and-Self-Development sectors collaborate to offer workshops, courses, and publications on Tanzanite, educating enthusiasts about its science, history, and characteristics.
- As a stone of striking color and unique optical properties, Tanzanite's rarity and high value have made it a subject of interest within the realm of Lifestyle magazines, Articles on Space-and-Astronomy, and Finance journals.
- Charity organizations have recognized Tanzanite's potential, incorporating it into their Lifestyle auctions to raise funds for Medical-conditions research and improving living conditions in Tanzania.
- Tanzanite's allure extends beyond Gemmology, with Technology companies developing advanced tools for polishing, appraising, and marketing Tanzanite jewelry, thus fostering innovation in the field.
- With rising interest in the gemstone market, Tanzanite has become an exciting area for investment, attracting Finance-savvy individuals who recognize its future value, fueled by its exclusivity and finite supply.
- Due to Tanzanite's unique qualities and rarity, it is imperative for consumers to invest in Education-and-Self-Development opportunities to learn about its proper care, value, and identification to minimize financial risks associated with its purchase.
- As the public's fascination with Tanzanite grows, scholars in various fields such as Science, Technology, and even Art & Design have been inspired to study and create works centered around this captivating gemstone.
