Tantalum Crucible is a device that is thermally stable at very high temperature and is suitable for use high temperature and is suitable for use in Diamond polishing industry. The crucible is specially treated tantalum. The wall of the crucible is carburized , thus is subjected to high temperatures . After the carburization of the tantalum it complete it is further taken up for further treatment. This enables it to withstand acidic fumes during diamond polishing