In , the "identification and composition of carbonate minerals of the calcite structure" has been proposed as gettable by means of portable devices. "A portable Raman device with a 532 nm excitation laser and a portable infrared spectrometer with ATR (Attenuated Total Reflection) mode were used to analyse the spectral features associated with the identification and compositional variation of Ca-Mg-Fe-Mn natural carbonate minerals with a calcite structure (calcite, ankerite, dolomite, siderite, rhodochrosite, and magnesite)" (Kin et al., 2021). Calcite has been also investigated in a very recent study by , who are proposing "attenuated total reflection infrared and far-infrared, and Raman spectroscopy studies of minerals, rocks, and biogenic minerals". Beck et al., proposed a "quantification of crystal chemistry of Fe-Mg carbonates" by Raman and near-infrared spectroscopy, for remote sensing. The researchers "discuss the framework of applicability of these calibrations and apply them to a typical CRISM [Compact Reconnaissance Imaging Spectrometer for Mars] spectrum of carbonates from the Nilli Fossae region of Mars". Besides investigations on Mars, the Raman study of calcite is relevant for biology too. Niessink et al., 2024, stressed the "discovery of calcite as a new pro-inflammatory calcium-containing crystal in human osteoarthritic synovial fluid".