
| Class: | L4-6 |
| Shock stage: | S3 |
| Weathering grade: | W1 |
| Fayalite (mol%): | 24.2 |
| Classifier: | A. Rubin |
| Type spec mass (g): | 189.3 |
| Type spec location: | UCLA |
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.
