Minerals and Metals in Ancient India v1.c16.s3.t1.3

v1.c16.s3.t1.3

Six flat celts of low grade bronze have been discovered in a painted pot at Jorwe. All the axes were covered with a fine, thin, green patina. Microscopic examination and chemical analysis of this piece showed that the axe was cast from molten metal. It has 1.78 per cent of tin and 98.04 per cent of copper. Therefore it is concluded that the axe is low grade alloy of bronze. Though the outside surface is slightly oxidized and has a thin greenish patina, the freshly cut surface is reddish yellow. The Jorwe axes have thickness comparable to that of the Indus Valley samples. The copper bangle found is made of pure copper and ring-like in shape. It is of single type nearly round with overlapping ends, made out of a solid cylindrical rod 12 mm in diameter and 32.2 mm long. (Sankalia and Deo, 1955: 157-60)