NWA 8694 Chassignite

NWA 8694 Chassignite

The NWA 8694 is a Chassignite, the third martian meteorite of this type (Chassigny, the type name fell in Chassigny, Haute Marne, France, on 3 October 1815). As noticed by Roger Hewing, the NWA 8694 has typical chassignite petrography (abundant olivine, interstitial pyroxenes and melt inclusions in olivine.

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The martian meteorite Northwest Africa 8694 (NWA 8694) is a single stone, almost entirely covered by fusions crust.
Petrography and classification: (Roger Hewins, Sylvain Pont, Brigitte Zanda, MNHNP) This meteorite is a cumulate dunite with 85% highly fractured olivine, classified as a chassignite. As the textures and mineral assemblages are almost identical to those of Chassigny and NWA 2737, the olivine and pyroxene compositions are intermediate between those of Chassigny and Nakhla.

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