Ethiopian Opal Beads Plain Rondelles measure approximately 5mm graduating up to 9mm in diameter size, these Opal gemstones have a waxy luster with excellent polish, these beads show slight matrix on their semi-translucent bodies, these Ethiopian Opal beads have scattered play of color in green-red-golden hues, their body is a deeply saturated treated black hue, and these treated Opal are mined in Ethiopia Africa.