Table 1 Copper isotopic compositions of the measured samples and geological reference materials

Group	Subtype	Name	δ⁶⁵Cu (‰)	2 SD (‰)^g	N^h
Shergottite	Basaltic	NWA 12269	−0.01	0.05	3
		NWA 12594	0.02	0.05	3
		NWA 12594 repeat	0.01	0.05	3
		NWA 2975	0.12	0.05	3
		NWA 8657	−0.07	0.05	3
		Zagami	−1.19	0.06	3
		Zagami chip 2	−1.00	0.06	3
		NWA 12564	0.01	0.05	3
		NWA 12564 chip 2	0.04	0.05	3
		NWA 12564 chip 2 repeat	0.05	0.05	3
		NWA 13327	−0.07	0.05	3
		Swayyah 002	−0.08	0.05	3
		Swayyah 002 repeat	−0.05	0.05	3
	Gabbroic	NWA 6963	0.63	0.06	3
	Gabbroic	NWA 6963 chip 2	0.49	0.06	3
	Olivine-phyric	NWA 1068	−0.12	0.05	3
	Poikilitic	NWA 7397	−0.29	0.06	3
		NWA 13276	0.00	0.05	3
		NWA 13276 chip 2^a	0.02	0.06	3
		NWA 13367	−0.03	0.05	3
		NWA 13367 chip 2	−0.04	0.05	3
Nakhlite	Augite-olivine-rich	Qued Mya 005	−0.06	0.05	3
		Qued Mya 005 chip 2	−0.15	0.06	3
		NWA 10645	−0.44	0.06	3
Reference material	Basalt	BHVO-2	0.06	0.05	3
			0.03	0.06	3
			0.07^b	0.06	–
			0.08^c	0.05	–
			0.10^d	0.05	–
			0.12^e	0.02^e	–
		BIR-1a	0.02	0.05	3
			0.02^f	0.04	–
			0.02^e	0.06^e	–
	Peridotite	JP-1	0.06	0.05	3
	Peridotite	JP-1	0.03^f	0.05	–

^aWeathered exterior of NWA 13276 chip 1, excluded from the average.
^bDay et al.¹³.
^cNi et al.¹².
^dHuang et al.¹⁵.
^eMoynier et al.⁹⁶, uncertainty is expressed as 2 SE (twice the standard error).
^fLiu et al.⁵.
^gUncertainties for measured samples are reported as 2 SD (twice the standard deviation of standard solution analyses during an analytical session).
^hNumber of measurements per sample solution.

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