Chalcedony. A semi-valuable gemstone named once the close by city of Chalcedon, and is offered in many of Istanbul's multitude of jewellery outlets. What’s more, its fascinating history as church, mosque and museum make it the city’s most revealing time capsule. Looted by marauding Crusaders from the thirteenth century, stormed https://istanbulwordpress89011.thezenweb.com/detailed-notes-on-istanbul-wordpress-75162447