There are also a number of other fascinating facts about natural Baltic Amber it floats in salt water but sinks in fresh water; its hardness measures 2.0-2.5 on the Mohs Hardness Scale; its density amounts to 0.96-1.096g/cm3. When amber is touched with fire, it produces an aroma of burning pine.
Location of Tanggu on a map. Tanggu is a city found in Tianjin, China. It is located 39.02 latitude and 117.65 longitude and it is situated at elevation 6 meters above sea level. Tanggu has a population of 535,298 making it the 2nd biggest city in Tianjin. It operates on the CDT time zone, which means that it follows the same time zone as Tianjin. Quick facts
The far reaching Tang Dynasty territory included its capital city of Changâan, centered in the midst of the empire with over one million inhabitants and was considered the largest city on earth at that time.n the western side, the capital city of Xidu was located in parts of China now occupied by Fengxiang and Shaanxi. To the south was the capital city of Nandu occupying parts of Chengdu and Sichuan, and to the north, the capital city of Beidu which occupied parts of Taiyuan and Shanxi.