Name: Northwest Africa 17101
This is an OFFICIAL meteorite name.
Abbreviation: NWA 17101
Observed fall: No
Year found: 2024
Country: Algeria
Mass: 527 g
Physical characteristics: Cut surface shows large chondrules set in an abundant light brown matrix.
Petrography: Chondrules with apparent size near 1 mm set in an abundant recrystallized matrix containing plagioclase with average grain size below 50 µm. Olivine is the dominant silicate. Opaque minerals are abundant magnetite and troilite.
Geochemistry: Olivine Fa31.6±2.5, NiO 0.15 wt% (n=7). Some olivine cores down Fa0.6. Augite Fs11.2Wo48.7 (n=2). Plagioclase An38.6Ab60.1Or1.3 (n=4). Magnetite has 2.48±1.03 wt% Cr2O3 (n=5).
Classification: Carbonaceous chondrite (CK5). Type 5 based on the presence of plagioclase in the matrix, despite the non complete equilibration of olivine.
Specimens: Type specimen at CEREGE. Main mass with Isabelle Pothier.
