Rainbow finish electroplated skull beads each measure approximately 8x10mm and feature a top-down hole. Make frighteningly fun jewelry and crafts with these 3-D gemstone beads featuring a multicolor iridescent shimmer. Manmade hematine has a similar chemical structure to real hematite, and is a very popular stone. *Manmade. Questions? Call our friendly sales staff at 1-800-366-2156, or email us.