Sand sample No. 4347 from Meteorite (Moon)

 

Origin:Meteorite (Moon)

Meteorite-Name:

Northwest Africa 482 (NWA 482)

Place of discovery:

Northwest Africa (Algeria ?)

Date of Collection:

2000 ?

Type:

Lunar meteorite (impact melt breccia)

Mineral compositions and Geochemistry:

Glassy and vesicular melt veins and melt pockets indicate shock subsequent to compaction by an impact event; plagioclase, An95.7Ab4.09Or0.17 (n = 136, UAz); olivine, Fo65–68 (average Fo66) with FeO/MnO = 88 ± 7 g/g (UCLA); olivine Fo68.4 with FeO/MnO = 93.9 ± 7.7 g/g (range: 78.7 to 111) (n = 51, UAz); pyroxene, Fs25Wo17 with nearly uniform Mg/(Mg + Fe) = 67–68 mol% and FeO/MnO = 51 ± 6 g/g (n = 10, UCLA); pyroxene, Wo10.3–51En32.6–63.9 Fs42.6–14.2, mean Mg/(Mg + Fe) = 68 mol%, FeO/MnO = 52 ± 8 g/g (n = 28, UAz); glassy melt veins occur in both UCLA and UAz samples; a 0.1 mm vein (UCLA) has SiO2 = 44.3 wt%, Na2O = 0.3 wt%, Al2O3 = 30.0 wt%, Fe

External Link
for more Infos:

International Society for Meteorities and Planetary Science

The Meteoritical Society Database
The Meteoritical Bulletin