Abundances_in_parts_by_weight_TU_is_NULL
TU    0.000000
 H    1000.000000
He    640.000000
Li    0.000000
Be    0.000000
 B    0.000000
 C    4.800000
 N    1.500000
 O    14.000000
 F    0.020000
Ne    10.000000
Na    0.050000
Mg    0.600000
Al    0.050000
Si    0.900000
 P    0.000000
 S    0.700000
Cl    0.070000
Ar    0.300000
 K    0.000000
Ca    0.080000
Sc    0.000000
Ti    0.000000
 V    0.000000
Cr    0.000000
Mn    0.000000
Fe    0.200000
Co    0.000000
Ni    0.060000
>Ni   0.010000
Default is Aller 1961, Clayton pg.85.