Chalcedony. A semi-precious gemstone named once the close by town of Chalcedon, and it is marketed in many of Istanbul's multitude of jewellery stores. The city, lying on two various continents and divided because of the Bosphorus, is linked by three bridges in addition to a tunnel. The bridge in https://andyvursp.thenerdsblog.com/42869068/facts-about-istanbul-work-revealed