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Coltan is a dull black metallic ore from which the elements niobium and tantalum are extracted. The niobium-dominant mineral in coltan is columbite, and the tantalum-dominant mineral is tantalite.
Tanco Mine or Bernic Lake mine is an underground caesium and tantalum mine, owned and since 2019 owned and operated by Sinomine Resource Group on the north west shore of Bernic Lake, Manitoba, Canada. The mine has the largest known deposit of pollucite and is also the world's largest producer of caesium.
The Verity mine is a large mine located about '30 miles kilometres north-northeast of Blue River in southeastern British Columbia', Canada. Verity represents one of the largest tantalum reserves in Canada having estimated reserves of 3.06 million tonnes of ore grading 0.02% tantalum, 0.065% niobium and 3.2% fluorite.
The Thor Lake mine is a large mine located in the northern part of Canada in Northwest Territories. Thor Lake represents one of the largest tantalum reserves in Canada having estimated reserves of 70 million tonnes of ore grading 0.03% tantalum and 0.04% niobium.
The Big Whopper mine is a large mine located at Separation Lake, in Ontario, Canada. Big Whopper represents one of the largest tantalum reserves in Canada having estimated reserves of 13.8 million tonnes of ore grading 0.007% tantalum and 1.34% lithium.
The Abu Dabab mine is a large proposed mine located in the eastern part of Egypt in Red Sea Governorate. Abu Dabab represents one of the largest tantalum reserves in Egypt having estimated reserves of 39.9 million tonnes of ore grading 0.025% tantalum.
The Umm Naggat mine is a large mine located in the northern part of Egypt in South Sinai Governorate. Umm Naggat represents one of the largest tantalum reserves in Egypt having estimated reserves of 25 million tonnes of ore grading 0.015% tantalum.
The Morrua mine is a large mine located in the northern part of Mozambique in Zambezia Province. Morrua represents one of the largest tantalum reserves in Mozambique having estimated reserves of 7.5 million tonnes of ore grading 0.07% tantalum.
The Muriane mine is a large mine located in the northern part of Mozambique in Zambezia Province. Muriane represents one of the largest tantalum reserves in Mozambique having estimated reserves of 7 million tonnes of ore grading 0.016% tantalum.
The Three Aloes mine is a large mine located in the western part of Namibia in Erongo Region. Three Aloes represents one of the largest tantalum reserves in Namibia, having estimated reserves of 13.2 million tonnes of ore grading 0.026% tantalum.
The Ghurayyah mine is a large mine located in the western part of Saudi Arabia in Tabuk Province. Ghurayyah represents one of the largest tantalum reserves in Saudi Arabia having estimated reserves of 385 million tonnes of ore grading 0.025% tantalum.
The Yichun mine is a large mine located in the southern part of China in Jiangxi. Yichun represents one of the largest tantalum reserves in China having estimated reserves of 34 million tonnes of ore grading 0.02% tantalum.
The Tongliao mine is a large mine located in the northern part of China in Inner Mongolia. Tongliao represents one of the largest tantalum reserves in China having estimated reserves of 6.8 million tonnes of ore grading 0.022% tantalum.
The Halzan Buregtei mine is a large mine located in the northern part of Mongolia in Khovd Province. Halzan Buregtei represents one of the largest tantalum reserves in Mongolia having estimated reserves of 218.8 million tonnes of ore grading 0.016% tantalum.
The Etykinskoye mine is a large mine located in the southern part of Russia in Zabaykalsky Krai. Etykinskoye represents one of the largest tantalum reserves in Russia having estimated reserves of 97.7 million tonnes of ore grading 0.013% tantalum.
The Orlovskoye mine is a large mine located in the southern part of Russia in Zabaykalsky Krai. Orlovskoye represents one of the largest tantalum reserves in Russia having estimated reserves of 200 million tonnes of ore grading 0.015% tantalum.
The Katuginskoy mine is a large mine located in the southern part of Russia in Zabaykalsky Krai. Katuginskoy represents one of the largest tantalum reserves in Russia having estimated reserves of 774 million tonnes of ore grading 0.025% tantalum.
The Ulug-Tanzekskoye mine is a large mine located in the southern part of Russia in Tuva. Ulug-Tanzekskoye represents one of the largest tantalum reserves in Russia having estimated reserves of 50 million tonnes of ore grading 0.01% tantalum.
The Echassières mine is a large mine located near the town of Échassières, in the central part of France in Allier. Echassières represents one of the largest tantalum reserves in France having estimated reserves of 167 million tonnes of ore grading 0.012% tantalum.
The Forcarey Sur mine is a large mine located in the central part of Spain in Galicia. Forcarey Sur represents one of the largest tantalum reserves in Spain having estimated reserves of 7.35 million tonnes of ore grading 0.016% tantalum.
References
- ↑ "Khorolsky District", Wikipedia, 2017-12-09, retrieved 2019-04-11
- ↑ "Tantalum reserves in Canada" (PDF). commerceresources.com. 2013. Archived from the original (PDF) on December 25, 2010. Retrieved 2013-07-07.
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