Meteorite collection 18 May 2022

NWA 5884 (Sahara) – Ureilite


Northwest Africa 5884 (NWA 5884)

(Northwest Africa)

Purchased: 2009

Classification: Ureilite

History: The meteorite was bought in 2009 from a Moroccan meteorite dealer in Erfoud, Morocco.

Physical characteristics: Brownish individual lacking any fusion crust.

Petrography: The meteorite shows a cumulate texture of coarse up to 1.5 mm sized Cr-rich olivine and pigeonite crystals. It contains flaky graphite; olivine displays characteristic reduced rims.

Geochemistry: reduced rims in olivine: Fa5.8-8.5; Cr2O3 in ol: ~0.6 wt%

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