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Indium was discovered in Germany in 1863. Although it is a lustrous silver-white color, the finders named the new material for the “indigo” spectral lines the mineral created on the spectrograph. Indium ranks 61st in abundance in Earth’s crust and is about three times more abundant than silver or mercury.
Suggested Citation
George, M.W., 2004, Mineral of the month: indium: Geotimes, v. 2004, no. November, HTML Document.