amber, natural fossilized tree resin isolated on shiny black background 50 Million Year Old Amber Resin Fossil from Australia Amber Beaded Necklace Amber resin tree hi res stock photography and images Alamy Gems and Gemstones: Amber is Fossilized Tree Resin Insect amber fossil hi res stock photography and images Alamy. Twist Closure Length: 19" Width: 1 2" Amber is hardened tree resin from prehistoric forests 40 50 million years ago. Though its transparency and color varies, the most common colors are orange, yellow and brown. Amber can also range into milky whites and deep reds. Your piece was designed and set in sterling silver by Polish craftsmen. The amber carried at Green River Silver Co. comes from the Baltic region and is imported directly from Gdansk, Poland.