       texture{ pigment{ color rgb<1,1,1>*0.9 }
                normal { pigment_pattern{ onion  
                                          sine_wave frequency 1 scale 0.0018 
                                          color_map {[0, rgb 0.2]
                                                     [1, rgb 0.8]}
                                        }
                          1.5  
                        }
                 finish { diffuse 0.70
                          phong 1  phong_size 5 reflection 0.15}
               }  
