The polymetallic mineralization veins of the world class Huanuni district in Bolivia form a conspicuously intricate framework. Comprehensive study on the mineralogy of proximal and distal deposits indicates that In is preferably concentrated in sphalerite precipitated in a lower-temperature stage in the distal domain. Other strategic elements reported to concentrate in equivalent deposits (e.g. Ga, Ge, Nb, Ta), though, returned very low or no detectable concentrations. Mineral paragenesis and textures and sulfur isotopic data support a complex mineralization history that probably implied multi-episodic intrusive events.

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