NWA 13060 (4,787 g)
Northwest Africa 13060 (NWA 13060)
Classification: Rumuruti chondrite (R3)
History: The meteorite was purchased from a meteorite dealer in Morocco.
Physical characteristics: Brownish rock with some fusion crust.
Petrography: The meteorite displays a light brownish to orange interior and is composed of sparse up to 1 mm sized angular type 3 clasts and matrix. Olivine and low-Ca pyroxene are compositionally unequilibrated in clasts and matrix; Fe-rich olivine is the most dominant mineral phase in the matrix. Chondrules have an average diameter of about 400 μm. More minor phases include low-Ca pyroxene, rare Ca-pyroxene, sodic plagioclase, sulfides, and Ti-bearing chromite; no metal has been detected.
Geochemistry: Olivine: Fa24.9±16.7 (Fa2.6-47.7, n=27); low-Ca pyroxene: Fs16.7±10.6Wo0.7±0.6 (Fs4.4-34.8Wo0.2-2.5, n=23)
Place of purchase: Morocco
Date: P 2019
Mass (g): 420
Shock stage: S1
Weathering grade: W2
Fayalite (mol%): 24.9
Ferrosilite (mol%): 16.7
Wollastonite (mol%): 0.7
Classifier: A. Greshake, MNB
Type spec mass (g): 26.5
Type spec location: MNB
Main mass: Philippe Schmitt-Kopplin
Comments: Submitted by Ansgar Greshake