Inhaled particles smaller than 4 μm can cause damage to lung tissue, a disease called silicosis. We present an investigation on the use of a Raman microspectrometer for the identification of inclusions in lung tissue. We measured Raman spectra of such inclusions in lung tissue of a patient whose probable cause of death was silicosis. Most of the inclusions we could identify were calcite particles.
H. Buiteveld, F. F. M. de Mul, J. Mud, and J. Greve, "Identification of Inclusions in Lung Tissue with a Raman Microprobe," Appl. Spectrosc. 38, 304-306 (1984)