Example of exocomet spectroscopy with LIFE. Top: simulated LIFE spectra for two hypothetical exocomet cases, with noise levels set based on LIFEsim calculations for 10 h observations. The two cases correspond to pure Enstatite (blue) and pure Forsterite (red) compositions, respectively. The clearest distinction between the two cases is the peaking at shorter wavelengths for the Enstatite case than in the Forsterite case. Bottom: residuals of the same two spectra after subtraction of a pure Enstatite model, leaving significantly smaller residuals in the true Enstatite case than the Forsterite case, relative to the error bars.