Table 1.

Isotopic compositions of anomalous Orgueil grains

Grain	diameter (nm)	50Cr/52Cr	53Cr/52Cr	54Cr/52Cr	50Ti/48Tia	50Ti/48Tib
Solar		0.05186	0.11347	0.02821	0.072418	0.072418
2_37	60	0.317 ± 0.033	0.1046 ± 0.0190	1.6039 ± 0.1070	33 ± 11	40 ± 13
2_54a	50	0.0750 ± 0.0333	0.1014 ± 0.0422	0.4117 ± 0.0898	0.5 ± 0.3	1.5 ± 0.9
2_54b	40	0.0831 ± 0.0276	0.0886 ± 0.0327	0.3165 ± 0.0597	0.5 ± 0.1	1.2 ± 0.3
3_10	60	0.0806 ± 0.0125	0.1115 ± 0.0156	0.1311 ± 0.0169	1.9 ± 0.6	5.1 ± 1.5
2_50ac	200	0.0764 ± 0.0181	0.0961 ± 0.0130	0.1090 ± 0.0166	0.080 ± 0.004	0.100 ± 0.004
2_90	65	0.0514 ± 0.0069	0.1336 ± 0.0118	0.0720 ± 0.0086
3_1	60	0.0399 ± 0.0074	0.0972 ± 0.0117	0.0696 ± 0.0097
2_65c	100	0.0535 ± 0.0018	0.1157 ± 0.0028	0.0693 ± 0.0022
3_34c	70	0.0499 ± 0.0057	0.1023 ± 0.0090	0.0611 ± 0.0071
2_116c	200	0.0541 ± 0.0048	0.1018 ± 0.0072	0.0596 ± 0.0052
2_73	110	0.0537 ± 0.0042	0.1071 ± 0.0065	0.0586 ± 0.0049
2_5	140	0.0527 ± 0.0037	0.1024 ± 0.0057	0.0547 ± 0.0039
2_131c	130	0.0491 ± 0.0031	0.1166 ± 0.0049	0.0493 ± 0.0032
3_5	130	0.0533 ± 0.0039	0.1158 ± 0.0062	0.0486 ± 0.0039
4_13	215	0.0580 ± 0.0027	0.1171 ± 0.0041	0.0386 ± 0.0023
2_50bd		0.0548 ± 0.0021	0.1126 ± 0.0032	0.0359 ± 0.0018
2_81d,e		0.0523 ± 0.0015	0.1041 ± 0.0023	0.0355 ± 0.0015
2_67	300	0.0584 ± 0.0017	0.1181 ± 0.0027	0.0355 ± 0.0014
4_7	200	0.0518 ± 0.0018	0.1131 ± 0.0029	0.0344 ± 0.0015
3_24	200	0.0401 ± 0.0026	0.1154 ± 0.0042	0.0248 ± 0.0019
2_103	100	0.0481 ± 0.0057	0.1587 ± 0.0109	0.0376 ± 0.0057
2_93	100	0.0482 ± 0.0055	0.0713 ± 0.0085	0.0243 ± 0.0049

^a50Ti/⁴⁸Ti calculated with assumption that grain has solar ⁵⁰Cr/⁵²Cr ratio.

^b50Ti/⁴⁸Ti calculated with assumption that grain has ⁵⁰Cr/⁵²Cr=0.

^cGrain is not completely resolved from one or more grains on sample mount and anomalies are thus lower limits

^dAnomalous grain cannot be uniquely identified among pile of grains

^eGrain also has ⁵⁷Fe/⁵⁶Fe=0.032 ± 0.002 (1.4 ±0.9 × solar); ⁵⁴Cr anomaly may instead be due to ⁵⁴Fe