. Author manuscript; available in PMC: 2020 Dec 21.

Published in final edited form as: Geochim Cosmochim Acta. 2019 Jul 17;263:215–234. doi: 10.1016/j.gca.2019.07.021

Table 5.

The Ti, Ni, and Sr isotopic compositions of the Egg 2 mineral separates.

Sample	Notes	ε⁴⁶Ti	ε⁵⁰Ti	ε⁶⁰Ni	ε⁶²Ni	ε⁶⁴Ni	ε⁸⁴Sr	⁸⁷Sr/⁸⁶Sr
Egg 2 Plag	PC	1.71	9.37	-	-	-	1.16	0.699084
Egg 2 high-Mg Px	PC	2.33	10.19	-	-	-	1.10	0.699296
Egg 2 high-Fe Px	PC	2.14	9.78	0.78	1.33	2.25	1.60	0.699513
Egg 2 bulk^*	PC	-	-	0.71	1.07	1.75	-	-
2SD	-	0.30	0.29	0.08	0.18	0.60	0.50	0.000013

The uncertainties shown represent the long-term reproducibility (2SD) based on repeat analyses of the terrestrial standard during the measurement campaign.

Px = pyroxene, Plag = plagioclase, PC = previously experienced ion chromatography

Ni isotopic composition of the Egg 2 bulk sample is from Render et al. (2018) and is shown in italics. Given the proportions of the mineral phases in Egg 2, this bulk sample can be considered a mixture of 73 wt.% Ni from Egg 2 high-Fe Px, 16 wt.% Ni from Egg 2 Plag, and 11 wt.% Ni from Egg 2 high-Mg Px.