\begin{table}%t2
\par
\caption{\label{si:profiles}Dust species used for the decomposition fit of the 10~$\mu$m
feature fit.}
\small%\centerline
{
\begin{tabular}{l l c l}
\hline \hline
Name&Stoichiometry&Structure$^a$&Reference\\
\hline
Olivine&MgFeSiO$_4$&a&\citet{Dorschner:1995}\\
Pyroxene&MgFe$[$SiO$_3]_2$&a&\citet{Dorschner:1995}\\
Forsterite&Mg$_2$SiO$_4$&c&\citet{Servoin:1973}\\
Enstatite&MgSiO$_3$&c&\citet{Jaeger:1998}\\
Quartz&SiO$_2$&c&\citet{Spitzer:1960}\\
\hline
\end{tabular}}
\smallskip
$^a$ a = amorphous, c = crystalline.
\end{table}