Description
L/LL3 chondrite
0.474g part slice
Sold in a collection box with label/certificate of authenticity
Northwest Africa 7165 (NWA 7165)
(Northwest Africa)
Purchased: 2011
Classification: Ordinary chondrite (L/LL3)
History: Purchased by Marcin Cimała in 2011 from a dealer in Erfoud, Morocco.
Petrography: (A. Irving and S. Kuehner, UWS) Closely-packed, well-formed chondrules (apparent diameter 0.2-1.8 mm) are set set within a finer grained matrix.
Geochemistry: Olivine (Fa8.9-60.8, Cr2O3 in ferroan examples = 0.06-0.13 wt.%, mean 0.10±0.03 wt.%, N = 7), orthopyroxene (Fs2.5-14.2Wo0.3-0.2, N = 3), subcalcic augite (Fs28.3Wo23.5), augite (Fs2.6Wo40.0).
Classification: Ordinary chondrite (L/LL3).
Specimens: 17.2 g including one polished thin section at PSF; main mass with Mr. M. Cimała.
