Rare Tanzanite: Formation, Occurrence, and Unique Properties

Tanzanite is a rare and stunning blue to violet gemstone primarily found in Tanzania. Known for its striking color and strong pleochroism, tanzanite is valued in jewelry and for its metaphysical properties. Discover its physical, chemical, and optical properties, benefits, uses, and occurrence in this comprehensive guide.

Overview:-

Tanzanite, a stunning gemstone, is a blue to violet variety of the mineral zoisite. Discovered in 1967 by a Masai tribesman named Ali Juuyawatu, it was subsequently named and brought to prominence by Tiffany & Co., who recognized its potential and gave it the trade name “tanzanite” in honor of its country of origin, Tanzania.

Tanzanite
Credit : Rob Lavinsky, iRocks.com – CC-BY-SA-3.0

Physical, Chemical and Optical Properties of Tanzanite:-

Chemical ClassificationSilicate
Chemical FormulaCa2Al3(SiO4)(Si2O7)O(OH)
Crystal systemOrthorhombic
Crystal HabitPrismatic crystals with striation, massive to columnar
ColourRoyal blue , Violet/Purple
StreakWhite Or Colourless
LusterVitreous
TransparencyTransparent to Translucent
OccurrenceTanzania
FormationFormed in a metamorphic environment under conditions of high pressure and relatively low temperature
CleavagePerfect {010}, Imperfect{100}
Mohs Hardness6.5
Specific Gravity3.10-3.38
Optic figureBiaxial positive
Refractive Index1.690- 1.700
Birefringence0.006 – 0.018
2V angle58° – 63°
Dispersion0.019

Formation of Tanzanite:-

Tanzanite forms in a specific geological environment under unique conditions. This gemstone is created through a combination of heat, pressure, and the presence of certain trace elements, primarily vanadium, which give it its distinctive blue to violet color. Here’s a detailed look at its formation

Geological Environment:-

Tanzanite is found in metamorphic rocks, specifically in gneisses and schists. These rocks are formed under conditions of high pressure and moderate to high temperatures, typically associated with tectonic activity.

The Mererani Hills, located near Mount Kilimanjaro in Tanzania, provide the unique geological setting necessary for tanzanite’s formation. This area is characterized by complex geological processes, including the interaction of various rock types and the presence of vanadium-rich fluids.

Metamorphic Conditions:-

The formation of tanzanite involves metamorphism, a process where existing rocks are transformed by heat and pressure. This process can take millions of years.

During metamorphism, the original minerals in the rocks undergo recrystallization. For tanzanite, this means the zoisite mineral, in the presence of vanadium, undergoes changes to form the vibrant blue to violet tanzanite crystals.

Occurrence of Tanzanite:-

The gemstone was found in the Mererani Hills near Mount Kilimanjaro in northern Tanzania. This region remains the sole commercial source of tanzanite, making the gemstone exceptionally rare and geographically unique. The area where tanzanite is mined is quite small, measuring about 8 square kilometers, which contributes to its scarcity and value.

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Uses of Tanzanite:-

Tanzanite is a versatile and highly valued gemstone, known for its stunning appearance and various uses. Here are the primary uses of tanzanite:-

Jewelry:-

Tanzanite is popular in rings, earrings, pendants, and other types of jewelry. It is highly valued for its unique color and rarity.

Tanzanite pandent
Credits:- gemteck1

Healing Properties:-

Believed to help with detoxification, boosting the immune system, and promoting recovery from illness.

Emotional and Spiritual Benefits:-

Enhances communication, spiritual growth, and psychic abilities. It is also thought to relieve stress and promote a calm, balanced state of mind.

Metaphysical Properties and Benefits of Tanzanite

Tanzanite is revered not only for its physical beauty but also for its metaphysical properties and the benefits it is believed to impart. Many people who are interested in crystal healing and spirituality value tanzanite for its unique energetic qualities. Here are some of the key metaphysical properties and benefits associated with tanzanite:-

Spiritual Growth and Transformation:-

Enhances Spiritual Awareness:- Tanzanite is thought to help in raising spiritual awareness and connecting with higher realms. It is often used in meditation to enhance spiritual practices and deepen spiritual insights.

Facilitates Transformation:- It is known as a stone of transformation, aiding in personal growth and development. It helps in overcoming old patterns and encourages a more enlightened perspective.

Psychic Abilities:-

Boosts Intuition: Tanzanite is believed to enhance intuition and psychic abilities, making it a popular choice for those seeking to develop their psychic skills.

Clairvoyance and Clairaudience: It is said to help in the development of clairvoyance (clear seeing) and clairaudience (clear hearing), providing clearer communication with the spiritual realm.

Emotional Healing:-

Stress Relief: Tanzanite is thought to have calming properties that help to relieve stress and anxiety. It promotes a sense of peace and tranquility, making it beneficial for those experiencing emotional turmoil.

Emotional Balance: It helps in balancing emotions, providing clarity and reducing feelings of overwhelm. It is also believed to aid in resolving emotional issues and promoting emotional healing.

Communication:-

Enhances Communication Skills: Tanzanite is associated with the throat chakra, which is linked to communication. It is believed to improve communication skills, making it easier to express thoughts and feelings clearly and effectively.

Public Speaking: Those who need to speak publicly or in front of groups may find tanzanite helpful in reducing nervousness and enhancing their ability to convey their message.

Conclusion:-

In summary, tanzanite’s allure lies in its combination of physical beauty, rarity, and powerful metaphysical properties. Whether appreciated as a stunning piece of jewelry or a tool for spiritual growth, tanzanite continues to captivate and inspire those who encounter it. Its unique origin, formation, and uses underscore its status as one of the most remarkable gemstones available today.

Frequently Asked Question(FAQ):-

Is tanzanite rarer than diamonds?

Yes, tanzanite is considered rarer than diamonds

Geographic Exclusivity: Tanzanite is only found in a small region near Mount Kilimanjaro in Tanzania, while diamonds are mined in multiple locations worldwide.
Limited Supply: Tanzanite’s finite source means it could be exhausted within a few decades, whereas diamonds have a broader and more consistent global supply.
Recent Discovery: Discovered in 1967, tanzanite has a shorter history compared to diamonds, which have been valued for thousands of years.
Market and Demand: Although tanzanite’s popularity is growing, diamonds have a long-standing market presence and cultural significance, especially in engagement rings.
Mining and Extraction: Tanzanite extraction is more challenging due to its narrow veins and deeper deposits, requiring specialized techniques, while diamond mining is more established and widespread.

Which zodiac sign is tanzanite stone for?

Tanzanite is often associated with the zodiac signs Sagittarius, Capricorn, and Pisces.

What are the chances to find another source of tanzanite?

The chances of finding another significant source of tanzanite outside the Mererani Hills of Tanzania are very low due to the unique and specific geological conditions required for its formation, which are not commonly found elsewhere. Extensive exploration efforts since its discovery in 1967 have not revealed any new significant deposits, indicating the rarity of these conditions. The Mererani Hills remain the only known commercial source, emphasizing tanzanite’s exclusivity and contributing to its high value and allure.

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