Silver Turquoise Coral Hair Barrette.  This appears to be a vintage piece.  It measures about 3 1/4 inches in length and about 1/4 inch across.  Nice stamp work on the barrette.  If there is a sterling mark it is not visible because the hair barrette apparatus takes up most of the back.  Some of the older Native piece were not marked.  It is silver.  Please contact with any questions.