Vintage spacer beads, custom-cut black onyxes. Note the gray color in the bead holes and some surface areas. Like most black onyxes, these stones were dyed. Photo © Joel E. Arem, PhD, FGA. Used with permission.
Credit: Joel E. Arem, PhD, FGA
|Gemstone||Quartz, Chalcedony, Onyx|
|Natural or man made||Natural|