Tanzanite
$249.95
Item number:
1
Tanzanite From Simanjiro District Manyara Region Tanzania.
Tanzanite, a rare blue-violet gem-quality variety of zoisite, is found in only one place on Earth:in the Manyara Region of Tanzania. Specifically, deposits are concentrated in a tiny 7-square-kilometer area around the Merelani Hills, located in the shadow of Mount Kilimanjaro.
Key Geological & Geographical Facts
- Geographic Exclusivity: The limited mining area is divided into four main blocks (A, B, C, and D) near the Lelatema Mountains.
- Chemical Composition: Its vibrant blue and violet hues are caused by trace amounts of vanadium.
- Trichroism: Tanzanite is famous for this unusual optical property, meaning the crystal displays three distinct colors (vivid sapphire blue, deep royal purple/violet, and burgundy) depending on the angle it is viewed from.
- Rarity: Because the geological conditions required to form the gemstone are so unique, tanzanite is considered significantly rarer than diamonds.