Valmiki Ramayana Yuddha Kanda Sarga 73 Shloka 23

स्त्राणि reed, शरपत्राणि weapons as leaves, अथ and, विभीतकाः bibitika, समिधः sticks, लोतानि red coloured, वासांसि च cloth, तथा same way, कार्ष्णायसम् ladle made of black iron, स्रुवम् to spread.

In that fire sacrifice, weapons were leaves, bibika sticks were fuel, red pieces of cloth were used, and in the same way the ladle for sacrifice was made of iron.