Mined in Mozambique, these are Dendrite Opal faceted rondell beads. Dendrite Opal is a milky white opal with dark, mossy, tree like inclusions of Manganese. These unusual rondell Opal beads measure 7.5-8mm and have sparkly faceting on the sides. The color pallet includes milky white, cream, black, grey, and brown. Each rondell bead is a unique piece of mother nature's art. Dendrite Opal is said to have the power to attract love and bring luck to the wearer. Who couldn't use a little of that.