. Author manuscript; available in PMC: 2019 Apr 24.

Published in final edited form as: Meteorit Planet Sci. 2015 Apr 24;50(5):976–1004. doi: 10.1111/maps.12445

Table 5.

Bulk composition for Iris derived from EDS data ultramicrotomed bullets shown in Figs. 2, 4, and 5.

At %	O	Na	Mg	Al	Si	K	Ca	Ti	V	Cr	Mn	Fe	Sum	Area (μm)
Fig. 2	58.19	2.12	10.99	4.17	18.25		0.73	0.04	0.02	1.24	0.03	6.84	102.62	232
Fig. 4	57.91	1.16	13.07	2.47	15.73	0.03	0.83	0.04	0.01	0.76	0.19	7.98	100.18	114
Fig. 5	58.06	0.98	13.67	2.15	15.21	0.04	0.46	0.02	0.01	0.60	0.18	8.64	100.01	142

Weighted mean of all bullets	58.09	1.56	12.26	3.19	16.78	0.02	0.67	0.03	0.01	0.94	0.11	7.63	101.29
Weighted Stdev (2 DOF)	0.14	0.65	1.50	1.16	1.73	0.03	0.18	0.01	0.01	0.35	0.09	0.97

Oxide Wt%	-	Na₂O	MgO	Al₂O₃	SiO₂	K₂O	CaO	TiO₂	V₂O₃	Cr²O³	MnO	FeO	Sum
ΣAll bullets	-	2.03	20.74	6.83	42.32	0.04	1.58	0.10	0.03	3.00	0.33	23.01	100.01