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Sources: Tanzania.

Hardness on Mohs scale: 6 - 7

Common Enhancements: Heating

Birthstone: December

Cleaning Methods:

  • Ultrasonic: not recommended
  • Steamer: not recommended
  • Warm soapy water: safe

Tanzanite is the most important gem variety of the Zoisite species, which can only be found in Tanzania and its availability is limited. It is almost impossible not to be amazed by tanzanite color, a fantastic deep blue surrounded by delicate hints of purple and red which can be observed when viewing it from different directions due to its strong pleochroism, an optical phenomenon in which a substance appears to be different colors. The cause of it is color is the chemical element Vanadium.

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