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NWA 7158 (25.15 gram)

250$

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[ Meteoritical Bulletin Database ]

 

Classification: Chondrite LL3 S2/W1/2
Time/Place: 2011 in Morocco
Mass: 3 pieces 2300 gram


History: Purchased by Marcin Cimala in 2011 from a dealer in Erfoud, Morocco.
Petrography: (A. Irving and S. Kuehner, UWS) Well-formed chondrules (mean apparent diameter 1.2 mm) in a finer matrix.
Geochemistry: Olivine (Fa0.9-74.1, Cr2O3 in ferroan examples 0.09-0.23 wt.%, mean 0.14±0.05 wt.%, N = 8), orthopyroxene (Fs2.1-14.5Wo0.2-1.7, N = 3), subcalcic augite (Fs17.7Wo25.6), augite (Fs0.9-2.6Wo44.5-47.9, N=2). Magnetic susceptibility log χ (× 10-9 m3/kg) = 3.91.
Classification: Ordinary chondrite (LL3). LL group designation based on magnetic susceptibility.