Table 2. Mg isotope compositions of olivine grains from the Eagle Station and Cold Bay pallasites, as well as carbonaceous chondrites.

Sample	Groupa	μ25Mg	2se	μ26Mg*	2se	nb	27Al/24Mgc
Cold Bay (USNM633)	PES	−187	6	5.2	1.8	10	<0.0001
Individual Eagle Station olivine grains
ES-13		−168	4	1.3	1.5	10	<0.0001
ES-3		−197	7	3.1	1.7	10	<0.0001
ES-US (USNM2752)		−163	8	3.3	2.4	10	<0.0001
ES-9		−172	3	4.0	0.9	10	0.00061
ES-GMa		−208	10	4.6	1.6	10	0.00054
ES-8		−180	8	5.0	1.2	10	0.00024
ES-5		−179	25	5.2	0.9	10	0.00035
ES-19		−167	9	5.5	1.0	10	<0.0001
ES-7		−190	7	5.9	2.5	10	0.00044
ES-12b		−188	5	6.0	1.4	10	<0.0001
ES-16		−211	12	6.3	0.7	10	<0.0001
ES-21		−194	5	6.4	1.0	10	<0.0001
ES-2		−175	4	6.5	1.4	10	<0.0001
ES-17		−192	7	6.7	1.3	10	<0.0001
ES-12a		−186	5	8.1	1.8	10	0.00034
ES-18b		−167	19	8.3	2.0	10	<0.0001
ES-6		−184	10	8.9	1.7	10	0.00057
ES-18a		−186	8	9.0	1.6	10	<0.0001
ES-1		−178	6	9.1	1.0	10	<0.0001
ES-GMb		−178	7	9.3	2.4	10	<0.0001
ES-15		−187	9	10.1	0.9	10	0.00014
ES-11		−175	7	12.4	1.1	10	<0.0001
ES-10		−195	7	12.9	2.3	10	0.00027
ES-14		−190	4	14.8	2.0	10	0.00038
Carbonaceous chondrites
Allende	CV3	−169	8	10.1	3.2	18	0.12890
Murchison	CM2	−159	16	−0.6	3.1	14	0.09680
NWA 4425	CK3	−178	7	7.0	1.8	10	0.11110

^aPES = Pallasite Eagle Station, CV = carbonaceous chondrite of the Vigarano-type, CM = carbonaceous chondrite of the Murchison-type, CK = carbonaceous chondrite of the Karoonda-type.

^bNumber of measurements.

^c27Al/²⁴Mg ratios are accurate to within 2%.