Description
Classification
history:
Meteoritical Bulletin: MB 102 (2014) LL7
This is 1 of 48 approved meteorites classified as LL7. [show all]
Search for other: LL chondrites, LL chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7)
Comments:Approved 11 Dec 2013
WriteupWriteup from MB 102:
Northwest Africa 7888 (NWA 7888)
(Northwest Africa)
Purchased: 2013 Feb
Classification: Ordinary chondrite (LL7)
History: Purchased by Alexandre Debienne in February 2013 from a dealer in Agadir, Morocco.
Petrography: (A. Irving and S. Kuehner, UWS) Completely recrystallized assemblage of olivine, orthopyroxene, clinopyroxene, sodic plagioclase, Ti-bearing chromite, iron sulfide, altered kamacite and taenite.
Geochemistry: Olivine (Fa31.8-32.0, FeO/MnO = 90-95), orthopyroxene (Fs25.2-25.3Wo1.7-2.2), clinopyroxene (Fs9.5-11.1Wo44.0-42.2).
Classification: Ordinary chondrite (LL7).
Specimens: Type specimen plus one polished probe mount at PSF; main mass with A. Debienne.
