El Pasoan still searching for mystery rocks' origin Erica MolinaEl Paso Times Photos by Victor Calzada / El Paso Times Stanton James uses a flashlight to show the translucence of a rock he has had analyzed in an effort to find its origins. Stanton James is searching for the origin of two rocks he bought about three years ago from a man for $5. More details The rocks have a dome-shaped top. They have a rimmed edge. Each has a concave bottom. Each has slight fluting from the bottom to the rimmed edge. A thumbprint-size depression is on the...