NWA 11244 ( 4,680 g )

Northwest Africa 11244 (NWA 11244)
(Northwest Africa)
Purchased: 2017 Feb
Classification: Pallasite
History: Purchased by Gary Fujihara in February 2017 from a Moroccan dealer.
Petrography: (A. Irving and S. Kuehner, UWS) Composed mainly of relatively large grains of olivine and iron hydroxides (from terrestrial weathering of primary metal). Some residual grains of kamacite and tetrataenite remain, along with accessory chromite, merrillite and troilite.
Geochemistry: Olivine (Fa12.8-13.4, FeO/MnO = 61-62, N = 3).
Classification: Pallasite.
Specimens: 24.69 g including one polished endcut at UWB;
 
Place of purchase:
Morocco
Date:
P 2017 Feb
Mass (g):
1197
Pieces:
many
Class:
Pallasite
Shock stage:
low
Weathering grade:
high
Fayalite (mol%):
12.8-13.4
Classifier:
A. Irving and S. Kuehner, UWS
Type spec mass (g):
24.69
Type spec location:
UWB
Main mass:
G. Fujihara
Comments:
Work name GF17-2; submitted by A. Irving