The following meteorites are still pending before the committee:
Northwest Africa 8712 (455 g, Howardite)
Northwest Africa 8713 (1007 g, Howardite)
Northwest Africa 8715 (647 g, CO3)
Northwest Africa 8716 (168 g, Martian (shergottite))
Northwest Africa 8715 (NWA 8715)
Morocco
Purchased: Feb 2013
Classification: Carbonaceous chondrite (CO3)
Petrography: Abundant chondrules (48 vol.%) with diameters ranging from 70 to 380 μm are visible. A few chondrules are 400-700 μm. A large number of individual olivine and pyroxene grains (9 vol.%) occur in the matrix. Major phases are olivine and low-Fe pyroxene (Fs<10). Minor phases include plagioclase, troilite and FeNi metal. A relative low abundance of matrix (37 vol.%). Abundant fine-grained inclusions (6 vol.%).
Geochemistry: Olivine (Fa0.1-39.6); orthopyroxene (Fs0.1-3.4Wo0.8-2.8); pigeonite (Fs1.9-8.8Wo6.9-14.1); augite (Fs1.6-3.4Wo36.9-49.2); plagioclase (An72-76).
Place of purchase: Agadir
Date: P Feb 2013
Mass (g): 647
Pieces: 1
Class: CO3
Shock stage: S2
Weathering grade: low
Fayalite (mol%): 30.9±7.0 (n=23)
Ferrosilite (mol%): 2.1±1.6 (n=10); 5.4±3.1 (n=6); 2.2±1.0 (n=4)
Wollastonite (mol%): 1.6±0.9 (n=10); 10.5±3.0 (n=6); 41.4±6.8 (n=4)
Classifier: Wu Y., PMO
Type spec mass (g): 20
Type spec location: PMO
Main mass: Ke Zuokai
Comments: Submitted by Hsu W.