"element","mass","abundance"
H,1.0078250322,0.999885
H,2.0141017781,0.000115
C,12.0,0.9893
C,13.003354835,0.0107
N,14.003074004,0.99636
N,15.000108899,0.00364
O,15.99491462,0.99757
O,16.999131757,0.00038
O,17.999159613,0.00205
Si,27.976926535,0.92223
Si,28.976494665,0.04685
Si,29.9737701,0.03092
P,30.973761998,1.0
Fe,55.93493633,0.91751
Fe,56.93539284,0.021185
Fe,57.93327443,0.002815
Fe,53.93960899,0.05849
Fe,54.9,0