Mexican Jalisco Rainbow Obsidian Rough Chunk! Cripple Creek Jasper These cephalopods had eyes

These cephalopods had eyes

This slab does have a rough offcut

and I was just informed that the mine this comes from has been permanently shut down

These are stones you won't want to miss

It more than likely comes from Oregon or Washington

Mexican Jalisco Rainbow Obsidian Rough Chunk! Cripple Creek Jasper These cephalopods had eyesMexican Rainbow Obsidian is also known as Jalisco Obsidian. It tends to be a pretty pure form of Obsidian, with high flash and bright colors. Typical chunks of Jalisco Obsidian normally have only one color of flash, though under rare circumstances, there can be multiple colors present. Unlike Velvet Obsidian, the magnetite in Rainbow Obsidian generally only flows in one direction, which creates the effect you see. Rainbow Obsidian does only flash