Green Onyx Grapes polychrome jasper ancient fossilized colonies created by

ancient fossilized colonies created by cyanobacteria (blue-green algae) and other primeval microorganisms

It can contain inclusions of iron oxide

Roses that won't wilt

Polished Chrysoprase tower from India

The black color is often due to the presence of iron impurities within the crystal structure

Green Onyx Grapes polychrome jasper ancient fossilized colonies created byPakistani onyx, the bands formed by the deposition of calcite saturated with iron. The iron oxidizes into reddish bands while the reduced iron creates green or whitish banding. These pieces are polished into grapes. You will receive one piece selected from our current stock. All pieces are of similar size and quality. Average measurements: 2 L x 2 W x 7 H inches Average weight: 0. 9 pounds