Wolframite was highly valued as the main source of the metal tungsten, a strong and quite dense material with a high melting temperature used for electric filaments and armor-piercing ammunition, as well as hard tungsten carbide machine tools. In World War II, wolframite mines were a strategic asset, due to its use in munitions and tools.
Wolframite is considered to be a conflict mineral due to the unethical mining practices observed in the Democratic Republic of the Congo.
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