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Tanzanite
Tanzanite
Tanzanite
Tanzanite

Tanzanite

Tanzanite

A species of Zoisite

Tanzanite is a relatively rare gemstone that is a deep-blue variety of zoisite. This color can be enhanced with extreme heating and is usually done so for retail purposes. This gemstone is named after its one and only area of occurrence, the Mererani Hills in Tanzania. Tanzanite is regarded as the birthstone for December and for 24th-year anniversaries.

Semi-precious gemstone

Hardness
Hardness:

6 - 7

Density
Density:

3.35 g/cm³

General Info About Tanzanite

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Physical Properties of Tanzanite

Luster
Vitreous
Diaphaneity
Transparent
Colors
Blue to blue-violet, brown, pale grey, red
Magnetism
Non-magnetic
Tenacity
Brittle
Cleavage
Perfect
Fracture
Uneven, Conchoidal
Streak
White, colorless
Crystal System
Orthorhombic
Hardness
6 - 7 , Hard
Density
3.35 g/cm³, Normal Weight
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Chemical Properties of Tanzanite

Chemical Classification
Silicates
Formula
{Ca2}{Al3}(Si2O7)(SiO4)O(OH)
Elements listed
Al, Ca, H, O, Si

Optical Properties of Tanzanite

Refractive Index
1.685-1.707
Birefringence
0.006-0.013
Pleochroism
Violet/purple stones - strong trichroism: strong blue, purple, greenish to brownish yellow; Blue stones - strong: strong blue, purple, greenish-yellow
Dispersion
0.03
Optical Character
Biaxial positive

Discover the Value of Tanzanite

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Rarity
Rare
Collection Recommendation
4.5 out of 5
Popularity
4.3
Aesthetic
4.5
Rarity
4.4
Sci-Cultural Value
4.1

The Market Price of Tanzanite

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Rough/Tumbled Price

Fixed Price
$0.4 - $10 g

Gemstone Price

Price
$100 ~ $400 /ct

How to Care for Tanzanite?

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Durability
Nondurable
Scratch resistance
Poor

Toughness of Tanzanite

Poor
Fair
Good
Excellent
Tanzanite's toughness is poor, making it susceptible to damage from daily wear due to its cleavage and fragile internal structure.

Stability of Tanzanite

Sensitive
Stable
Tanzanite demonstrates resilience under various conditions such as water immersion, sunlight exposure, and dry environments. It maintains appearance well against stains but should avoid high heat and harsh chemicals for optimal preservation.
More Care Tips of Tanzanite

Characteristics of Tanzanite

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Cultural Significance of Tanzanite

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Uses of Tanzanite

Because of its exceptional strength and clarity, as well as expert marketing by Tiffany and Co. Tanzanite is now the world's second most popular blue gemstone. It is most commonly faceted and set into jewelry pieces such as earrings, rings, and necklaces, although raw stones are becoming popular in these settings as well.

Healing Properties of Tanzanite

Tanzanite is believed to act as a "reset button," especially after a trauma or interruption in daily life. Many believe it promotes relaxation and improves physical ailments when worn. It is said to have the power to release a person's creative energy that might otherwise be blocked, allowing the individual to focus and regain intention with their goals.

Common Questions People Also Ask

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