Chalcedony. A semi-valuable gemstone named after the close by town of Chalcedon, and it is sold in many of Istanbul's large number of jewellery shops. What’s far more, its fascinating historical past as church, mosque and museum ensure it is the city’s most revealing time capsule. Looted by marauding Crusaders https://wordpresskursuistanbul01234.webdesign96.com/37384615/facts-about-istanbul-work-revealed