Chalcedony. A semi-treasured gemstone named once the close by city of Chalcedon, and is also bought in most of Istanbul's large number of jewellery shops. At present, most metro stations do not need a staffed ticket booth, so you will have to obtain your Istanbulkart through the yellow ticket devices. https://istanbulwork57890.theblogfairy.com/36023952/an-unbiased-view-of-wordpress-installieren