Amber, often sold as a gem stone is actually a fossil of tree resin. I worked this free form with sand paper and buffed it with denim cloth. We are here in Quartzsite for the 50 th annual Pow Wow rock and gem show.  We created added an Amber  Information page to our site to learn more, check it out  http://bustinglassandminerals.com/educational-topicsfaq/amber-information/