Carbonaceous - NWA 13483

CK5 - NWA 13483

Northwest Africa 13483 (NWA 13483)

Place of discovery: Algeria

Find: 2019

Classification: Carbonaceous chondrite (CK5)

History: Purchased from a dealer in Morocco

Physical characteristics: Crusted stones. Cut surface reveal a dark gray interior with a lighter angular lighter clast.

Petrography: (J. Gattacceca, CEREGE) Recrystallized chondrite. Opaques minerals: magnetite, sulfides. The matrix is recrystallized, with plagioclase average size below 50 µm.

Geochemistry: Olivine Fa32.2±1.1, NiO 0.58±0.13 wt% (n=3). Low-Ca pyroxene Fs23.2Wo3.5 (n=1). Magnetite Cr2O3 6.0 wt%.

Classification: Carbonaceous chondrite (CK5).

Specimens: Type specimen at CEREGE. Main mass with Isabelle Pothier.

Mass (g): 350

Pieces: 2

Class: CK5

Weathering grade: low

Classifier: J. Gattacceca, CEREGE

Main mass: Isabelle Pothier


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