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Using ASTER to detect iron-rich sources: Most minerals react uniquely to light in the very-near infrared (VNIR) and shortwave infrared (SWIR) spectrum, creating a so-called ‘spectral signature’ for the mineral. Since the ASTER satellite have 6 bands to cover this region, manipulation of the bands can result in the detection of certain minerals on the earth’s surface. In this exercise, the aim was to detect iron-rich minerals, which is associated with manganese. A historical zone of manganese mineralization was used to verify results and show correspondence.