Northwest
Africa 4457
Northwest
Africa
Found 2006
Achondrite (diogenite)
Mass
(g): 144.79
Pieces: 1
One single stone bought in Erfoud (Morocco) in June 2006.
Mode : 96% pigeonite, 2% chromite, altered troilite, traces of diopside and
interstitial glass.
Nearly
complete fusion crust slightly weathered on one side.
Inside orange colour due to weathering. Millimetric
(up to nearly centimetric) green pyroxene clasts about
60 vol % within brecciated matrix of the same material.
Mineralogy :
Pigeonite : En69 Fs27 Wo4, FeO/MnO = 30, Mg# 0.72
Cpx : En44 Fs12 Wo43, Mg# 79
Chromite :Mg00.2Fe0.9Al0.6Cr1.3O4
Glass : SiO2 70%, Al2O3 14%, K2O 7%
Log
X = 2.94 (10-9 m3/kg)
Main Mass : P. Thomas
Reference specimen : UPVI 33.34 g
Mineralogy and petrology : A. Jambon, O. Boudouma and D. Badia
Sorry!
this meteorite is no more available for sale.
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