History of Chemistry in Ancient and Medieval India, Incorporating the History of Hindu Chemistry by Acharya Prafulla Chandra Ray c15.s1.19

c15.s1.19

M. M. Nagar, who visited the the locality at Kopia in 1949 found countless number of tiny glass beads and glass pieces of various shapes and sizes, scattered all over the place. Fragments of earthen crucibles with glass sticking to the inner side were collected by him. Lumps of glass in various stages of formation and of various colours were noticed. These give some idea of the process adopted for melting, refining and colouring the glass. A block of glass discovered by him was found to weigh about 120 lb. and to have a dimension of 18″ × 19″ × 12″. The block was found to contain some over-burnt brick-bats, used possibly for reinforcement (Figs. 15. *a*, *b*, *c*, *d*. and 16).