Baltic Amber
The earliest records of Amber usage come from the very early Megalithic period immediately after the last ice age. Through history up until modern times Amber was believed to originate in the Baltic Sea and have a marine origin. This is because historically Amber was found among the flotsam and jetsam of the sea shore particularly after rough weather. November is considered the best month to hunt for beach amber on the Southern shore lines of the Baltic Sea.
Resin from the ancient spruce trees eventually fell to the ground onto the ground once the tree has healed underneath. The lumps harden as they become compressed by the weight of soil above; and change colour due to the chemicals in the soil. Polymerisation then takes place over millions of years. During this time the ancient Amber forest died out millions years ago due to climate change and most of the northern hemisphere was eventually covered in a thick sheet of ice, this is why so much Amber originates from the Baltic Sea.
The Baltic Sea region, particularly countries like Poland and Lithuania, is known for producing a significant amount of amber. The Amber Room in the Catherine Palace of Tsarskoye Selo near St. Petersburg, Russia, is a famous example of amber craftsmanship.