Amber Jewelry

Where the name comes from: Arabic anbar, Latin ambar, originally referred to what is now called ambergris from sperm whales, both ambergris and fossil resin amber were found washed ashore leading to some confusion.
Where the stones come from: Kaliningrad Oblast in Russia on the Baltic produces 90% of the world supply.
Chemistry: Ffossilized resin produced by trees, a mixture of polymerized hydrocarbons with some oxygen, cross links and polymer chains increase with age. Average formula C₁₀H₁₆O
Colors: Yellow to reddish orange,
...and another thing: Amber can include fossil insects and spiders that were trapped as it was produced. A whole room lined with amber was created in the early 1700's, it was rebuilt in 2003 in St. Petersburg, Russia.
 

Prices correct at time of writing - subject to change