Blue Onyx Top Polished Pink natural variety of chalcedony known

natural variety of chalcedony known for its deep apple-green colors

while calcites occupy the voids and cracks  The mudstone and calcite contain iron

You will receive the exact piece shown in the photos

Average Weight: 6

Blue Onyx Top Polished Pink natural variety of chalcedony knownBlue onyx is a variety of the chalcedony mineral composed of banding of blue, white, and gray. Blue onyx is composed of silicon dioxide, and ranges from translucent to opaque with a vitreous glassy luster when polished. These pieces have only one side polished. You will receive one piece selected from our current stock. All pieces are of similar size and quality. Average Dimensions: 2. 0 L x 1. 75 W x 4. 0 H inches Average Weight: 0. 83 pound