The message of oldhamites from enstatite chondrites

Progress in Earth and Planetary Science

Table 1 List of samples analyzed minerals in this study

Meteorite	Type	Fall/find	Source	Oldhamite	Enstatite	In-situ REE measurements	Whole rock and leaching
ALHA77295	EH3	Find	NASA		x	[4]	[4]
Caleta el Cobre 025	EH3	Find	J. Gattacceca, CEREGE	x
Sahara 97096^a	EH3	Find	L. Labenne		x	[4]	[4]
Sahara 97158^a	EH3	Find	L. Labenne	x		[4]	[4], [6]
Abee	EH4	Fall	L. Labenne	x	x	[3], [2]	[6], [7]
Oudiyat Sbaa	EH5	Find	A. Irving, University of Washington, Seattle	x
St. Mark’s	EH5	Fall	Smithsonian, USNM 3027			[3]	[6], [7]
MAC 88136^b	EL3	Find	NASA	x		[1], [3]	[6]
MS 17^c	EL3	Fall	S. Haberer, Haberer Meteorite	x
MS 189^c	EL3	Fall	A. Black, Impatika	x
MS 196^c	EL4/5	Fall	A. Black, Impatika	x
Adrar Bous	EL5	Find	L. Labenne	x	x		[7]
Atlanta	EL6	Find	A. El Goresy, BGI	x	x
Hvittis	EL6	Fall	J. Schooler	x	x		[6], [7]
NWA 974	EL6	Find	Fectay				[6]

Previous studies providing data on rare-earth elements (in-situ and whole-rock) on these samples are indicated in bracket []
[1] Crozaz and Lundberg (1995): oldhamite, enstatite and niningerite by SIMS
[2] Hsu (1998): albite by SIMS
[3] Hsu and Crozaz (1998): enstatite by SIMS
[4] Gannoun et al. (2011): oldhamite by SIMS and LA-ICPMS, enstatite and niningerite by SIMS, whole-rock measurements
[5] Boyet and Gannoun (2013):step-wise dissolution techniques, measurement of leachings and residues
[6] Barrat et al. (2014): whole-rock, leachate and residue measurements
[7] Boyet et al. (2018): whole-rock measurements
^aSahara 97072, 97096 and 97158 are paired meteorites
^bPaired to MAC 88180
^cMS samples are fragments of the polymict breccia of Almahata Sitta fall