The Baltic region is home to the largest known deposit of amber, called Baltic amber or succinite. It dates from 44 million years ago. It has been estimated that these forests created over 10 tons of amber.
The term Baltic amber is generic, so amber from the Bitterfeld brown coal mines in Saxony (Eastern Germany) goes under the same name. Bitterfeld amber was previously believed to be only 20–22 million years old (Miocene), but a comparison of the animal inclusions revealed that it is most probably genuine Baltic amber that has only been redeposited in a Miocene deposit. Other sources of Baltic Amber have been listed as coming from Poland and Russia.
Because Baltic amber contains about 8% succinic acid, it is also termed succinite.