NWA 13850 (37,657 g)
Northwest Africa 13850 (NWA 13850)
Purchased: January, 2021
History: The meteorite was purchased from a dealer in Morocco.
Physical characteristics: Dark-grayish rock without fusion crust.
Petrography: The meteorite shows a coarse-grained cumulate texture of olivine and pigeonite grains up to 2.5 mm in sizes. Olivine and pyroxene display characteristic reduced rims and the meteorite contains flaky graphite.
Geochemistry: reduced rims in olivine: Fa3.5-4.6; olivine contains 0.82±0.04 wt% Cr2O3 and 0.42±0.01 wt% CaO; reduced rims in pyroxene: Fs6.4-7.6Wo7.5-8.5; pigeonite contains 1.10±0.03 wt% Cr2O3 and 0.31±0.01 wt% Al2O3
|Place of purchase:||Morocco|
|Date:||P January, 2021|
|Fayalite (mol%):||15.6±0.1 (n=6)|
|Ferrosilite (mol%):||13.2±0.1 (n=6)|
|Wollastonite (mol%):||8.4±0.1 (n=6)|
|Classifier:||A. Greshake, MNB|
|Type spec mass (g):||23.2|
|Type spec location:||MNB|
|Main mass:||Hanno Strufe|
|Comments:||Submitted by Ansgar Greshake|