what is the rhino's horn made of? Share with your friends Share 0 Lijo Thomaz answered this Its made of....go ask google... 0 View Full Answer Riffat Jahan answered this Hi,Rhinoceros' horns are made of protein Keratin (the same protein of which our hair and nails are made up of). Their horns also contain minerals such as calcium.Rhinoceros' horns are highly valuable, for which they are killed also. 1
