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Tantalite Mining Quarry

columbite ore mineral,tantalite is the principal ore of the metal tantalum . tantalite tantalite. tantalite amp columbite mining process, tantalite coltan short for columbitetantalites and known industrially as tantalite is a dull black metallic ore, from which the elements niobium and tantalum are extracted..radionuclides in tantalite ore and radiation exposure in,materials left gravel in the exploited quarry, displayed less content of uranium and 238 u at 69 2 bqkg. the iron fraction, after magnetic separation from raw tantalite ore, is still rich in uranium, with 254 8 bqkg of 238 u, but after recycling for improved separation of tantalite, the materials.

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