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(mineralogy) A yellow, brown or black, sometimes red, green white or colorless mineral with cubic crystals, of a chemical formula (Zn,Fe)S, often containing also minor metals, such as cadmium, gallium, germanium and indium.

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sphalerite

Miners discovered a vein of sphalerite that was rich in cadmium and other minor metals, its cubic crystals gleaming in the torchlight.

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Miners discovered a vein of sphalerite that was rich in cadmium and other minor metals, its cubic crystals gleaming in the torchlight.

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