Roughly *** thousand kilograms of tanzanite was produced in Tanzania in the financial year 2019/2020. This was the highest production volume of the blue and violet gemstone, only found in Tanzania. As of 2018, the country built a wall surrounding tanzanite mines in Mirerani, in the northern Manyara Region, to contain smuggling of the rare gemstone. Since then, production output and sales of tanzanite have been increasing.
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Tanzania Mining Commission. (October 27, 2021). Production volume of tanzanite in Tanzania from the financial years 2015/2016 to 2019/2020 (in kilograms) [Graph]. In ÌÇÐÄÆƽâ°æ. Retrieved August 02, 2026, from /statistics/1272387/production-volume-of-tanzanite-in-tanzania/
Tanzania Mining Commission. "Production volume of tanzanite in Tanzania from the financial years 2015/2016 to 2019/2020 (in kilograms)." Chart. October 27, 2021. ÌÇÐÄÆƽâ°æ. Accessed August 02, 2026. /statistics/1272387/production-volume-of-tanzanite-in-tanzania/
Tanzania Mining Commission. (2021). Production volume of tanzanite in Tanzania from the financial years 2015/2016 to 2019/2020 (in kilograms). ÌÇÐÄÆƽâ°æ. ÌÇÐÄÆƽâ°æ Inc.. Accessed: August 02, 2026. /statistics/1272387/production-volume-of-tanzanite-in-tanzania/
Tanzania Mining Commission. "Production Volume of Tanzanite in Tanzania from The Financial Years 2015/2016 to 2019/2020 (in Kilograms)." ÌÇÐÄÆƽâ°æ, ÌÇÐÄÆƽâ°æ Inc., 27 Oct 2021, /statistics/1272387/production-volume-of-tanzanite-in-tanzania/
Tanzania Mining Commission, Production volume of tanzanite in Tanzania from the financial years 2015/2016 to 2019/2020 (in kilograms) ÌÇÐÄÆƽâ°æ, /statistics/1272387/production-volume-of-tanzanite-in-tanzania/ (last visited August 02, 2026)
Production volume of tanzanite in Tanzania from the financial years 2015/2016 to 2019/2020 (in kilograms) [Graph], Tanzania Mining Commission, October 27, 2021. [Online]. Available: /statistics/1272387/production-volume-of-tanzanite-in-tanzania/
