TNT Mineral Science

Hyperspectral Imagery

In 1906, the first absorption, emission, and reflectance spectra of minerals and rocks were published by William Coblentz. One hundred years after Coblentz built his first spectrometers--which required three to five hours to collect a single reflectance spectrum--hyperspectral imaging systems became available, and they can collect millions of reflectance spectra in the same amount of time. 

Hyperspectral imaging systems are very versatile. They can collect data from the surface of many materials, and these spectra contain information about mineral chemistry, mineral abundance, and the physical state of the sample (e.g., porosity, grain size, degree of coherence). As a result, extensive testing has begun on the usage of hyperspectral imagery as a tool for collection compositional information from drill core, rock chips, and thick sections.