\begin{table}%t2 \caption{\label{feat}Summary of the different crystalline silicate features examined in this study.} \par \small%\centerline { \begin{tabular}{ccccc} \hline\hline Crystal & Peak & Measured & Measured $\Delta \lambda$ \\ & $\lambda$ [$\mu$m] & peak $\lambda$ [$\mu$m] & Eq. width [$\mu$m] \\ \hline &&&& \\[-8pt] \begin{tabular}{l} Enstatite \\ (MgSiO$_{3}$) \end{tabular} & \begin{tabular}{l} 9.2$^{(1,2)}$ \\ 21.6$^{(1)}$ \\ 23.0$^{(1,2)}$ \\ 24.5$^{(1,2)}$ \\ 28.2$^{(1,2)}$ \end{tabular} & \begin{tabular}{l} 9.24 $\pm$ 0.08 \\ 21.47 $\pm$ 0.16 \\ C23 \\ C23 \\ C28 \end{tabular} & \begin{tabular}{l} 0.49 $\pm$ 0.11 \\ 0.45 $\pm$ 0.25 \\ C23 \\ C23 \\ C28 \end{tabular} \\ \hline &&&& \\[-8pt] \begin{tabular}{l} Forsterite \\ (Mg$_{2}$SiO$_{4}$) \end{tabular} & \begin{tabular}{l} 11.3$^{(2)}$ \\ 16.2$^{(2)}$ \\ 23.8$^{(2)}$ \\ 27.6$^{(2)}$ \\ 33.6$^{(2)}$ \end{tabular} & \begin{tabular}{l} 11.26 $\pm$ 0.12 \\ 16.08 $\pm$ 0.16 \\ C23 \\ C28 \\ 33.1 $\pm$ 0.63 \end{tabular} & \begin{tabular}{l} 0.60 $\pm$ 0.33 \\ 0.38 $\pm$ 0.16 \\ C23 \\ C28 \\ 1.19 $\pm$ 0.47 \end{tabular} \\ \hline \begin{tabular}{l} Diopside \\ (CaMgSi$_{2}$O$_{6}$) \end{tabular} & 25.0$^{(2)}$ & 25.14 $\pm$ 0.18 & 0.58 $\pm$ 0.22 \\ \hline \end{tabular}} \medskip References: $^{(1)}$ \citet{Koike2000}; $^{(2)}$ \citet{Molster2002b}. \end{table}