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NWA 11640 (24.46 gram)


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[ Meteoritical Bulletin Database ]


Classification: Achondrite, Ureilite
Place/Time: 10.2017 in Morocco
Mass: 500g

History: The meteorite was purchased from a local meteorite dealer in Morocco.

Physical characteristics: Dark brownish fragment lacking any fusion crust.

Petrography: The meteorite shows a cumulate texture of up to 2.5 mm sized olivine and pigeonite grains. Olivine crystals appear to consists of smaller subgrains and pigeonite shows patchy compositional zoning. Olivine displays characterisitic reduced rims. The meteorite contains diamond and shows some foliation.

Geochemistry: reduced rims in olivine: Fa2.0-7.7; olivine contains 0.65±0.04 wt% Cr2O3 and 0.35±0.02 wt% CaO

Additional photo