What is called green amber is a greenish yellow amber sold with the
skin intact. The top is cabbed, usually freeform. Often the skin
is darkened with some foreign substance - looks like paint to me.
The resulting stone has a definite green cast, compared to honey or
cognac amber because the disk like inclusions stand out against the
dark background. Some of the interesting green amber is also
treated when being annealed to have starburst rays. I was told by a
Polish amber dealer that he did it by banging the warm stone
smartly on a hard surface, thus causing the disks to radiate from
the center of the cut stone.
This green amber has been widely available at Tucson. The local
shows have shown it exclusively set in jewelry. The material comes
from Poland or Lithuania.
Judy Hoch, G.G.