Sand sample No. 5212 from Meteorite (Mercury ?)

 

Origin:Meteorite (Mercury ?)

Meteorite-Name:

Northwest Africa 7325 (NWA 7325)

Place of discovery:

Northwest Africa

Date of Collection:

2012

Type:

Ungrouped achondrite

Mineral compositions and Geochemistry:

Clinopyroxene (Fs1.1-2.6 Wo45.1-44.5, FeO/MnO = 12-21, Al2O3 = 2.6-2.8 wt.%, Cr2O3 = 1.0 wt.%), plagioclase (An88.1-89.2Or0.0), olivine (Fa2.7-2.8, FeO/MnO = 30-36, CaO = 0.27-0.32 wt.%, Cr2O3 = 0.32-0.35 wt.%). Bulk composition: analyses of representative bulk wire-saw cutting dust by ICP-MS gave: (in ppm) La 0.15, Ce 0.34, Nd 0.16, Sm 0.05, Eu 0.58, Gd 0.05, Hf 0.44, Th 0.27. Oxygen isotopes: laser fluorination analyses of acid-washed subsamples gave, respectively δ17O = 3.214, 3.670, 3.249; δ18

External Link
for more Infos:

International Society for Meteorities and Planetary Science

The Meteoritical Society Database
The Meteoritical Bulletin