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Northwest
Africa 869
Northwest
Africa
Find: 2000 or 2001
Ordinary chondrite (L4–6)
History:
It is quite clear that meteorite collectors in Northwest
Africa have discovered a large L chondrite strewn field
at an undisclosed location. At least 2 metric tons
of material comprising thousands of individuals has
been sold under the name NWA 869 in the market places
of Morocco and around the world. Individual masses
are known to range from <1 g to >20 kg. It is
certain that NWA 869 is paired with other NWA meteorites,
although no systematic survey has been done. It is
also possible that some stones sold as NWA 869 are
not part of the same fall, although dealers are confident
that most of the known masses are sufficiently distinctive
from other NWA meteorites in terms of surface and internal
appearance that the error rate should be fairly low.
Scientists are advised to confirm the classification
of any specimens they obtain before publishing results
under this name.
Petrography and Geochemistry: (A. Rubin, UCLA) A fragmental
breccia of type 4–6 material; one thin section
dominated by an L5 lithology gave olivine (Fa24.2).
Classification: Ordinary chondrite (L4–6); W 1, S3.
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