Amber glass is the name of any glassware with the proper yellow-brown shading. It was a popular color just after the Civil War and many pressed glass pieces were made of amber glass. Depression glass of the 1930s-1950s was also made in shades of amber glass. Other pieces may be found in the Depression Glass, Pressed Glass, and other glass categories. All types are being reproduced. Jewelry is made from real amber, which is taken from the resin of pine trees, and forms amber.