
Tumbled Sumatra Blue Amber From Indonesia
Tumbled Sumatra Blue Amber from Sumatra, Indonesia. Amber is the fossilized resin of extinct coniferous trees and has been used since the Paleolithic era as a gem material. Sumatra Amber is dated to be approximately 15-20 million years old. Sumatra Amber varies in color but is often a dark cognac color, it also has the unique ability to fluoresce. In incandescent light this Amber displays a reddish hue but in UV light Sumatra Amber fluoresces blue. In some of the most gemmy Sumatra Amber, a blue glow or sheen is visible in UV light. This, along with its ability to fluoresce blue, is how Sumatra Amber became known as Sumatra 'Blue' Amber. A study of Blue Amber concluded this Amber resin originated from an extinct prehistoric tree species, the Hymenaea Protera. Blue Amber has only been discovered in three locations in the world. The most well-known being the Dominican Republic Blue Amber, Mexican Blue Amber from Chiapas and this small deposit in Sumatra Indonesia. Local villagers in Suma