Lab Manufactured Opal Pendant

Lab manufactured opal pendant. This pendant has an unidentified artists' hallmark stamped on the back. Synthetic opals are man-made opals that have the same chemical composition, internal structure, physical properties, and appearance as natural opals. They are often called lab-created opals, lab-grown opals, or cultured opals to indicate their man-made origin. The pendant measures 3/4" long by 1/2" and the bale can accommodate a medium chain.