Best model fits for our LMC sample stars, showing the contribution of the different dust species. Top: the observed spectrum (black curve) is plotted together with the best model fit (red curve) and the continuum (black solid line). Forsterite is plotted in green, enstatite in blue, silica in cyan and amorphous olivine and pyroxene in magenta. Small grains (0.1 μm) are plotted as dashed lines and larger grains (2 and 4 μm) as dotted lines. Bottom: the normalised residuals after subtraction of our best model of the observed spectra.