One of the most important and groundbreaking applications of Raman spectroscopy is detecting materials associated with signs of life and organic chemistry. Gypsum, a sulfate mineral found on Mars, is closely associated with water and has been known to harbor fossil life on Earth. Apatite is made of calcium phosphates, and phosphates can be evidence of life because they are part of the backbone of DNA. Scientists believe that the first life on Earth may have been formed near volcanic seeps in seawater, a sulfur-rich environment. Calcite is also important to life because L- and D-amino acids are known to adsorb to this mineral.
Below we compare the results from our instruments (blue) to the data published on the RRUFF online database (red).