Chalcedony. A semi-cherished gemstone named following the nearby town of Chalcedon, and is particularly bought in most of Istanbul's large number of jewellery retailers. At present, most metro stations would not have a staffed ticket booth, so you will have to attain your Istanbulkart through the yellow ticket machines. By https://rafaeliwjzj.wikilinksnews.com/6280096/the_definitive_guide_to_istanbul_wordpress