QTY 1 - Small Black Obsidian Round Mirror / 2.5" Menu 7 Stone In addition to use in

In addition to use in jewelry for thousands of years

These red markings are typically due to the presence of iron oxide

The Only true way to test is through a lab

Average size range: 5 to 10 millimeters

but different mineral inclusions and amounts of natural radiation will alter its color

QTY 1 - Small Black Obsidian Round Mirror / 2.5" Menu 7 Stone In addition to use inSMALL BLACK OBSIDIAN MIRROR Origin: MEXICO Pieces measure approximately 2. 5" (AVERAGE SIZE) The picture is an example ONLY. This listing is for a 100% natural product. Please allow for variation in size, shape, color, and formation. No cherry picking. Randomly selected gemstones. Requests cannot be fulfilled. CRYSTAL RIVER GEMS WHOLESALE BULK **Fast domestic and international shipping**