TANZANITE GEMSTONE

OVERVIEW

What is Tanzanite?

Tanzanite is a bluish-violet gemstone found exclusively in Tanzania's Merelani Foothills. Initially mistaken for a new deposit of sapphire by a Maasai Tribesman in the late 1960s, these crystals were soon identified as a novel zoisite variant. It is named in tribute to its Tanzanian roots, and it surpasses diamonds in scarcity by a thousandfold, which is one reason it is known as the “Gemstone of a Generation” or the “Gemstone of the 20th Century”.

VALUE

How valuable is Tanzanite?

Like other colored stones, the value of tanzanite hinges on four crucial factors: color, clarity, cut, and carat weight. The following guidelines will help in choosing tanzanite stones for your collection.

Color

The finest tanzanite color is found in ‘AAAA’ grade stones, featured in the Rhapsody and Iliana collections. ‘AAA’ tanzanite offers excellent value and is the most accessible choice for owning a high-quality gemstone. Most tanzanite jewelry at Shop LC is ‘AA’ grade, making it very affordable and ideal for casual gem collectors. ‘A’ grade tanzanite, the most common on the market, is typically used as accent stones in jewelry.

Clarity

Premium tanzanite is typically eye-clean, with inclusions visible only under 10× magnification. Inclusions seen by the naked eye can lower a stone’s value, especially in lighter colors. While inclusions are natural, skilled cutting minimizes them so they are usually only visible with magnification.

Cut

Cutting tanzanite requires balancing weight retention with enhancing color and clarity, while also accounting for its pleochroic nature. Because of this structure, emphasizing violet tones usually results in larger stones. Violet-blue tanzanite is common, while predominantly blue stones are the rarest.

Carat

Tanzanite is available in many sizes, offering options for every preference. Larger stones tend to show richer color, with the finest blue-violet tanzanite and pleochroic flashes of red typically found in gems over five carats. Still, attractive tanzanite can be found in all sizes to suit different tastes and budgets.

TYPES

Tanzanite Varieties

While most of us are familiar with the traditional blue-violet variety of tanzanite, there are actually several zoisite gems that are also considered tanzanite:

• Bondi Blue Tanzanite: Named after the sea-blue color seen on the beautiful Bondi Beach in Australia, Bondi Blue Tanzanite displays deep blues tinged with rich greens.
• Natural Green Tanzanite: Similar in color to green tourmaline, Natural Green Tanzanite has a green base color with red-violet and blue undertones.
• Peacock Tanzanite: Peacock Tanzanite represents features transition between cheerful green and bright blue hues, mimicking the shimmer of the male Indian peafowl.

ORIGIN

Where Does Tanzanite Come From?

Tanzanite's journey begins in Tanzania, named to avoid the less appealing moniker “blue zoisite,” which bore an unfortunate resemblance to “blue suicide.” This decision paved the way for its recognition as tanzanite in honor of the country in which it was discovered.

While specific discovery tales are varied, tanzanite was unearthed in the 1960s. Many narratives acknowledge the Maasai of the Merelani Foothills, near Mt. Kilimanjaro, as early witnesses to the gem's allure.

The Tanzanian government recognizes Jumanne Ngoma as the man who discovered tanzanite. In the mid-1980s, Ngoma would receive two certificates legitimizing his discovery of the gem. In April 2018, the Tanzanian government bestowed a large reward to Ngoma to help care for him in his retirement. The Tanzanian government considers Jumanne Nogma to be a national treasure for his discovery of the stone.

However, another story credits Manuel de Souza, who discovered the stone by accident. De Souza was attempting to prospect further inland for gems, but poor road conditions meant his driver wouldn’t take him the full distance he intended to travel. Instead, de Souza began to explore around the village of Mtakuja, where the driver had left him and his crew. Souza was said to have found the first tanzanite crystals there. This story has gained strong support and momentum because of the mountains of evidence supporting it. Not only was de Souza’s discovery covered in major periodicals of the time, but many prominent figures within the gem trade have backed his claims in countless anecdotes, articles, and reports.

IDEAL CHOICE

Who Can Wear Tanzanite?

Blue is a surprising color, its shades shaping our perceptions in remarkable ways. Tanzanite sits in a unique space among gems. Originally, sellers were excited by blue tanzanite, as they thought it would give them a good substitute for sapphire. But, over time, the subtle range of violet-blue has become better known, making tanzanite a desirable gem in its own right.

Blue is one of the most popular colors in the U.S. The mysterious blues and enchanting violets of tanzanite create a mystique that easily intrigues us all. Fortunately, tanzanite crystal covers all of these bases and then some!

The exquisite and deeply saturated colors that have propelled this stone to world renown are perfect for classic and formal attire. A certified and appraised AAA tanzanite ring with an expertly set gem is the ultimate expression of luxury.

While tanzanite is rare and unique, its accessibility is part of its charm. You can find premium tanzanite available in affordable options that include settings of precious sterling silver, often enhanced with a platinum or gold finish.

These selections are great for their contemporary appeal and are a versatile addition to any collection. Tanzanite fashion jewelry is great for both office and casual attire. Use it to effortlessly transition from day to night.

FORMATION

How Is Tanzanite Mined?

Following tanzanite's discovery, the rush of miners and treasure seekers in the tanzanite mines led the government to organize the area into four blocks, labeled ‘A’ to ‘D,’ a system that remains today. Shop LC sources its tanzanite from Block C, partnering with TanzaniteOne Ltd, the largest producer of tanzanite.

As a top Sight Holder, Shop LC's substantial purchases enable a steady supply at low costs for consumers and the assurance of an ethical supply chain, giving peace of mind to rare gem collectors. The collaboration also supports the Tanzanite Foundation, which aids the Tanzanian community through educational and infrastructural services.

Block C is the largest of the Blocks physically and also produces the highest yield. Mining for tanzanite continues to rely on hand tools and traditional techniques, but Block C also benefits from modern technology, enabling more efficient, safer, and reliable extraction of tanzanite gemstones.

Block C, the largest and most productive, combines traditional mining techniques with modern technology for better efficiency and safety. Mines reach depths of over 2600 feet, with geological surveys suggesting even deeper reserves. However, deeper mining poses safety challenges and may impact future operations.

COMPARISON

How Does Tanzanite Compare to Other Stones?

Properties of Tanzanite

Tanzanite carries a wealth of meaning and significance beyond its aesthetic appeal. Its properties range from metaphysical attributes believed to enhance communication and healing, to its esteemed place as a modern December birthstone.

What Does Tanzanite Mean?

Though tanzanite is a recent discovery in the global market, knowledge of the mineral zoisite is traceable to the early 19th century. Gem therapists associate zoisite with improving fertility in men and women by stimulating desire and healing reproductive organs. They also believe that zoisite provides additional protection during pregnancy for unborn children.

Specifically, tanzanite is said to boost the immune system, protecting people from disease by stimulating healing. Like many other blue-color stones, crystal healers are thought to improve communication and sharpen the mind, opening the ability to perceive the greater world around us.*

*For informational purposes only. These remedies, approaches, and techniques are NOT a substitute for professional medical care or treatment. They should not be used to treat any ailment without prior consultation with a qualified healthcare professional.

Authenticity

How to Authenticate Tanzanite?

Tanzanite's unique allure and rarity make it a coveted gemstone, but ensuring its authenticity is crucial when purchasing or evaluating Tanzanite jewelry. Here's a step-by-step guide to help you authenticate tanzanite:

1. Research and Verification: Begin by researching reputable sources and dealers known for their expertise in tanzanite. Verify the credentials and certifications of the seller to ensure they adhere to industry standards and ethical practices. Stick to retailers known for their commitment to authenticity and transparency in the gemstone trade, such as Shop LC.

2. Color Assessment: Examine the color of the tanzanite carefully. An authentic tanzanite stone typically displays a vivid blue-to-violet hue with flashes of red. Be wary of gems with overly uniform or unnatural colors, as they may indicate treatments or synthetic origins.

3. Clarity Inspection: Assess the clarity of the tanzanite by examining it under magnification. Look for any internal inclusions or blemishes that may affect its transparency and value. Authentic tanzanite often contains natural inclusions, but excessive flaws or irregularities could indicate synthetic or treated stones.

4. Cut Evaluation: Evaluate the cut of the stone to ensure it exhibits optimal brilliance and symmetry. Authentic tanzanite typically has a faceted stone to enhance its color and clarity while maximizing light reflection. Pay attention to the precision of the cut and the quality of the facets, as they can significantly impact the stone's overall appearance.

5. Certification and Documentation: Request a certificate of authenticity or gemological report from a reputable gemological laboratory. These documents provide detailed information about the stone’s characteristics, including its color, clarity, cut, and carat weight. Verify that the certificate matches the stone in question and confirms its natural origin and authenticity.

6. UV Testing: Perform a UV (ultraviolet) light test to further authenticate your gem. Authentic tanzanite typically exhibits a distinctive naturally blue fluorescence under UV light, known as tenebrescence. However, note that the absence of fluorescence does not necessarily indicate synthetic or treated tanzanite, as not all genuine stones fluoresce.

7. Consultation with Experts: When in doubt, seek guidance from experienced gemologists or jewelry appraisers who specialize in tanzanite. They can provide professional insights and expertise to help authenticate the stone and ensure that it is not an imitation.

CARE

Caring for Tanzanite

Tanzanite is rated 6.0 to 7.0 on the Mohs hardness scale, meaning that it is relatively durable. However, it can cleave if struck. For an active person wearing tanzanite daily, a pendant or earrings may be a better choice than a ring. Proper care ensures that your tanzanite crystal remains as captivating as the day you received it. Here are more essential tips you should consider:

Cleaning: To clean tanzanite safely, use a mild detergent solution diluted in warm water. Gently scrub the gemstone with a soft-bristled brush, such as a toothbrush, to remove any dirt or residue. Avoid harsh chemicals or abrasive cleaners, as they can damage the gemstone's surface and affect its clarity and color. After cleaning, rinse the tanzanite thoroughly under running water and pat it dry with a soft, lint-free cloth.

Storage: Store each piece separately in a soft pouch or lined jewelry box to prevent scratches and abrasions. Avoid storing tanzanite with other gemstones or metal jewelry that may scratch its surface. Keep tanzanite away from direct sunlight and extreme temperatures, as prolonged exposure can cause fading and thermal shock, which can cause the stone to fracture.

Preventive Care Measures: Remove your tanzanite pieces before engaging in activities that may subject them to impact or abrasion, such as sports or household chores. Avoid exposing tanzanite jewelry to harsh chemicals, including household cleaners, hairspray, and perfume, as they can corrode the metal settings and affect the gemstone's appearance. Schedule regular inspections with a professional jeweler to check for loose settings or signs of damage and ensure timely repairs if needed.

Facts

Facts of Tanzanite

Tanzanite ranks from 6.0 to 7.0 on the Mohs hardness scale.

The best tanzanite displays a transition of color from blue to violet, with flashes of red.

Tanzanite originates in Tanzania, first found in the Merelani Hills near Mount Kilimanjaro.

Tanzanite universally undergoes heating to improve its color.

Tanzanite is the blue-to-violet variety of the zoisite mineral structure. Sometimes, it’s known in green or pink varieties, but these specimens are rare.