gr_material copper {0.7038 0.27048 0.0828} {0.25677 0.13762 0.086014} 12.8
gr_material emerald {0.07568 0.61424 0.07568} {0.633 0.727811 0.633} 76.8
gr_material jade {0.54 0.89 0.63} {0.316228 0.316228 0.316228} 12.8
gr_material obsidian {0.18275 0.17 0.22525} {0.332741 0.328634 0.346435} 38.4
gr_material pearl {1 0.829 0.829} {0.296648 0.296648 0.296648} 11.264
gr_material ruby {0.61424 0.04136 0.04136} {0.727811 0.626959 0.626959} 76.8
gr_material turquoise {0.396 0.74151 0.69102} {0.297254 0.30829 0.306678} 12.8
gr_material brass {0.78039 0.568627 0.113725} {0.99215 0.941176 0.807843} 27.9
gr_material bronze {0.714 0.4284 0.18144} {0.393548 0.271906 0.166721} 25.6
gr_material chrome {0.4 0.4 0.4} {0.774597 0.774597 0.774597} 76.8
gr_material gold {0.75164 0.60648 0.22648} {0.628281 0.555802 0.366065} 51.2
gr_material silver {0.50754 0.50754 0.50754} {0.508273 0.508273 0.508273} 51.2
gr_material brubber {0.01 0.01 0.01} {0.4 0.4 0.4} 10
gr_material polbronze {0.4 0.2368 0.1036} {0.774597 0.458561 0.200621} 76.8
gr_material polcopper {0.5508 0.2118 0.066} {0.580594 0.223257 0.0695701} 51.2
gr_material polgold {0.34615 0.3143 0.0903} {0.797357 0.723991 0.208006} 83.2
gr_material pewter {0.427451 0.470588 0.541176} {0.33333 0.33333 0.521569} 9.84615                                                                       
gr_material polsilver {0.50754 0.50754 0.50754} {0.508273 0.508273 0.508273} 51.2