Table 1. Inferred ²⁶Al/²⁷Al ratios, initial Δ²⁶Mg₀*, and goodness of fit for 18 ²⁶Al-bearing ALHA77307 CAIs.

Uncertainties are 2σ. hib, hibonite; pv, perovskite; sp, spinel; mel, melilite; di, diopside rim; and fo, forsteritic olivine.

Sample	Minerals	26Al/27Al (±2σ)	∆26Mg0* (‰, ±2σ)	Reduced χ2
019	hib	(4.86 ± 0.42) × 10−5	0.05 ± 0.26	0.3
021	hib-pv-sp	(0.80 ± 1.65) × 10−5	0.87 ± 0.44	2.0
070	sp-pv-di-ol	(5.12 ± 0.67) × 10−5	−0.13 ± 0.09	0.7
073	hib-pv-sp	(4.85 ± 0.32) × 10−5	0.12 ± 0.10	10
074	hib-pv-sp	(5.37 ± 0.29) × 10−5	−0.21 ± 0.50	1.9
095	hib-sp	(4.94 ± 0.21) × 10−5	−0.06 ± 0.27	1.0
117	hib-pv-sp-di	(3.76 ± 0.37) × 10−5	0.86 ± 0.27	6.7
119	hib-pv-sp-di	(5.46 ± 0.35) × 10−5	−0.16 ± 0.14	0.4
147	hib-sp-di	(5.73 ± 1.20) × 10−5	−0.05 ± 0.43	1.2
148	hib-sp-di	(3.34 ± 0.37) × 10−5	0.46 ± 0.33	9.4
155	hib-sp	(1.72 ± 0.81) × 10−5	1.57 ± 0.46	22.3
164	hib-sp-di	(4.68 ± 0.39) × 10−5	−0.04 ± 0.24	1.8
165	sp-di-fo	(4.32 ± 0.62) × 10−5	−0.01 ± 0.04	0.9
212	sp-pv-di	(4.53 ± 0.80) × 10−5	−0.11 ± 0.11	0.4
222	hib-sp	(2.44 ± 0.44) × 10−5	0.26 ± 0.32	0.2
229	sp-pv-mel-di-ol	(5.59 ± 0.91) × 10−5	−0.15 ± 0.13	1.4
230	hib-pv-sp-mel	(4.48 ± 0.19) × 10−5	0.33 ± 0.31	3.8
230SW	hib-pv-sp-mel	(3.01 ± 0.79) × 10−5	1.77 ± 0.81	0.7