Tag: silica

Trial-and-error led to among the largest industries up to now.The creation of glass continually evolved with additions of limestone, lead oxide and boric acid.Metals like cobalt, copper, manganese, silver and gold would change the consistency, clarity, colour weight and strength of glass.The Venetians were the first ever to become world leaders in the manufacture of glass.The Crusades and the conquest of Constantinople in 1204 opened just how for extensive trade practices through the entire Eastern Mediterranean and in a variety of Islamic territories...