\begin{table}%t3
\par
\caption {\label{tab:material-properties}Properties of monomers used in this study.}
\vspace*{-1mm}
%\centerline
 {\begin{tabular}{c c c c}
\hline\hline
$\gamma$ [erg/cm$^2$] & $E^\ast$ [dyn/cm$^2$] & $\xi_{\rm crit}$ [cm]  & $\rho$ [g/cm$^3$]  \\ 
\hline
$25$ & $2.78\ep{11} $ & $2\ep{-7}$ & 2.65 \\
\hline
\end{tabular}}
\smallskip
Material properties
  correspond to Quartz monomers or radius $r_0=6\ep{-5}$~cm.
\end{table}