• Mineral Consultants Projects: World Map …

    Orway Mineral Consultants provide metallurgical consulting services around the world, see our current projects from around the globe. For more information contact us.

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  • Outline of mining Wikipedia

    The following outline is provided as an overview of and topical guide to mining: Mining – extraction of valuable minerals or other geological materials from the ...

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  • Coltan Wikipedia

    Coltan (short for columbite–tantalite and known industrially as tantalite) is a dull black metallic ore from which the elements niobium and tantalum are extracted.

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