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NWA 7167 (4.58 gram)

80 $

In stock

Category:
[ Meteoritical Bulletin Database ]

 

Classification: CK4 S2 / W low
Time/Place: 2014 in Morocco
Mass: 144g

History: Purchased by Marcin Cimała in 2011 from a dealer in Erfoud, Morocco.

Petrography: (A. Irving and S. Kuehner, UWS; P. Carpenter, WUSL) Separated well-formed, equilibrated chondrules containing Cr-magnetite occur in a finer grained matrix (pale orange in thin section) containing intermediate plagioclase, stained Cr-magnetite, ferropseudobrookite and chlorapatite.

Geochemistry: Olivine (Fa33.4±0.3, range Fa32.9-33.7, N = 7), orthopyroxene (Fs27.3±0.3Wo1.4±0.1, range Fs27.1-27.6Wo1.5-1.4, N = 3), clinopyroxene (Fs8.6Wo47.4; Fs10.1Wo46.4; N = 2), magnetite (5.1-5.3 wt.% Cr2O3, N = 3), plagioclase (An28.3Or5.3; An43.2Or2.8; An58.1Or1.5; N = 3).

NOTE: last slice