5.75" x 3.5"
Says, "Mediterranean at exit of Rhone where outgassing makes geoclutter", the exact words spoken to me when bag of mud was handed to me off the dock when R/V Oceanus was being unloaded. I was also told that the bubbles of gas were fogging the sonar. The exterior is this sediment glaze. Interior of shiny brown and exterior lavender are assembled from refined materials. Thumb-well is blue sea-glass.