ar              1 1 0 0xFFFFFF 0
gua            80 1 0.0002 0xFFFF80 1
vidro           5 1 1e-12 0x80FFFF 0
cobre           1 1 5.8e+07 0x4080FF 0
gua do mar     72 1 4 0xFCF9BA 1
solo seco       3.5 1 1e-05 0x9191C8 0
teflon          2.1 1 1e-15 0xC0C0C0 0
ferro           1 4000 1e+07 0x9F9F9F 0
