Description
0.224g part slice. Sold in a box with label/certificate
Northwest Africa 10651 (NWA 10651)
(Northwest Africa)
Purchased: 2016 Jan
Classification: Carbonaceous chondrite (CK5)
History: Purchased in January 2016 by Fabien Kuntz from Steve Arnold (Chicago), who had acquired the stone from a Moroccan source.
Petrography: (A. Irving and S. Kuehner, UWS) Sparse chondrules (apparent diameter up to 1.6 mm) set in a recrystallized matrix containing abundant orange-stained Cr-rich magnetite.
Geochemistry: Olivine (Fa34.7-35.6, FeO/MnO = 106-111, N = 3), clinopyroxene (Fs8.3-8.7Wo47.5-48.5, N = 3).
Classification: Carbonaceous chondrite (CK5).
Specimens: 20.08 g including one polished thin section at PSF; remainder with Kuntz.
Place of purchase: Chicago
Date: P 2016 Jan
Mass (g): 100.8
Pieces: 1
Class: CK5
Shock stage: low
Weathering grade: low
Fayalite (mol%): 34.7-35.6
Ferrosilite (mol%): 8.3-8.7
Wollastonite (mol%): 47.5-48.5
Classifier: A. Irving and S. Kuehner, UWS
Type spec mass (g): 20.08
Type spec location: PSF
Main mass: F. Kuntz
Comments: K292; submitted by A. Irving
