        texture{ pigment{ color rgb<0.05,0.55,0.40> }
                 normal { pigment_pattern{ radial 
                                           scallop_wave  frequency 15 
                                           scale  0.17  turbulence 0.0 
                                           color_map {[0, rgb 0.5]
                                                      [1, rgb 0.9]}
                                         }
                          1.5  
                        }
                 finish { phong 1  reflection 0.2}
                 rotate<90,0,0>
               } // end of texture ---------------------------
