Quantitative Mineralogy of Planetary Silicate Ternary Mixtures using Raman Spectroscopy

The proportion of minerals could provide clues about the processes that formed them and hence help decipher the planet's geological history. However, previous studies on planetary materials using Raman spectroscopy mainly focused on mineral identification.

In this study, we introduce new Raman quantitative models based on spectral measurements of silicate ternary mixtures in the laboratory. The linear relationships between Raman integrated intensities and mineral proportions are observed. We demonstrate that our quantitative models based on this linear relationship are more accurate than previous attempts and are independent of instrumental setup.