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Tanzanite Gemstone

Tanzanite is part of the Zoisite gem species. It was named by the Tiffany company when discovered in 1967. Tanzanite is quite special in that it is only found in one location in the world, laying at the foot of Mount Kilimanjaro in Tanzania. The vivid color range in Tanzanite is a clear distinguishing feature of this remarkable and highly valued gem material, colors range from ultramarine Blue to light Violet-Blue.

It is worth noting that the vast majority of Tanzanite gem material is subject to trade accepted enhancements of light heating to enhance the Blue tones.

Tanzanite is the birthstone for the month of December, and can be used as a wedding anniversary stone to celebrate 24 years of marriage.

Tanzanite is the thought to convey the mythical trait of ‘balance’.



The Blue tones in Tanzanite comes from the presence of traces of Vanadium in its chemical composition.

Tanzanite is only sourced from northern Tanzania. The mines are all located in an area of about eight square miles in the Merelani Hills, near the base of Mount Kilimanjaro and the city of Arusha.

Tanzanite is somewhat soft with a Mohs’ hardness rating of between 6.5 to 7/10. Blossomjewels typically recommends using Tanzanite in pendants or brooches or rings worn only on special occasions. In addition, Tanzanite jewelry should never be subjected to an jeweler’s ultrasonic cleaning machine. It should also never be brought into contact with acids for cleaning purposes.


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