Roumanite

Amber is fossilized that has been appreciated for its color and natural beauty since Neolithic Much valued from antiquity to the present as a gemstone. It has also been used as a healing agent in folk medicine.

There are five classes of amber, defined on the basis of their chemical constituents. Because it originates as a soft, sticky tree resin, amber sometimes contains animal and plant material as inclusions Amber occurring in coal seams is also called resinite, and the term ambrite is applied to that found specifically within New Zealand