Meteorite collection 18 May 2022

NWA 8447 (Sahara) – CK6


Northwest Africa 8447 (NWA 8447)

(Northwest Africa)

Purchased: 2014

Classification: Carbonaceous chondrite (CK6)

History: Purchased in Morocco in 2014

Physical characteristics: A single crusted stone. Cut surface reveals poorly delineated dark chondules (up to 1 mm) and CAIs (up to 1 mm) embedded in a gray to greenish matrix.

Petrography: Chondrule mean apparent size 750±340 μm (n=26). Matrix plagioclase up to 200 μm

Geochemistry: Olivine Fa34.1±0.3 (PMD = 0.8, n=10, range 33.6-34.5). CPX Fs9.8Wo48.8 (n=2). Magnetite contains 5.1 wt.% Cr2O3. Magnetic susceptibility log χ = 4.57 (χ in 10-9 m3/kg)

Classification: Carbonaceous chondrite (CK6)

Specimens: 8.4 g and a polished section in CEREGE. Main mass with Pierre-Marie Pelé

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