![]() |
||
|
Northwest Africa 8275 | |||||||||||||||||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Basic information | Name: Northwest Africa 8275 This is an OFFICIAL meteorite name. Abbreviation: NWA 8275 Observed fall: No Year found: 2012 Country: Morocco Mass: ![]() | ||||||||||||||||||||||||||||||||
Classification history: |
This is 1 of 68 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 10 Mar 2014 | ||||||||||||||||||||||||||||||||
Writeup![]() |
Writeup from MB 103:
Northwest Africa 8275 (NWA 8275) Anoual, Morocco Purchased: 2012 Aug 19 Classification: Ordinary chondrite (LL7) Physical characteristics: Two partially crusted fresh stones (132 and 242 g) crisscrossed by numerous shock veins. Cut surfaces reveal abundant shock veins and melt pockets. Petrography: (J. Gattacceca, CEREGE) Recrystallized with no visible chondrules. Main minerals are olivine, pyroxene, sodic plagioclase, troilite. Interstitial plagioclase are up to 300 μm. Chromite, phosphate, and FeNi metal are present. Geochemistry: Olivine Fa32.5±0.2, orthopyroxene Fs25.9±0.1Wo3.6±0.6, plagioclase An7.7Ab89.5Or2.9 . Magnetic susceptibility (log χ with χ in 10-9 m3/kg) is 3.77. Classification: LL7 Specimens: Type specimen (24 g) at CEREGE. Main mass with P. Thomas | ||||||||||||||||||||||||||||||||
Data from: MB103 Table 0 Line 0: |
|
||||||||||||||||||||||||||||||||
Institutions and collections |
CEREGE: CEREGE
BP 80
Avenue Philibert, Technopole de l'Arbois
13545 Aix-en-Provence Cedex 4
France, France (institutional address; updated 29 Oct 2018) |
||||||||||||||||||||||||||||||||
Catalogs: |
| ||||||||||||||||||||||||||||||||
References: | Published in Meteoritical Bulletin, no. 103, MAPS 52, 1014, May 2017, http://onlinelibrary.wiley.com/doi/10.1111/maps.12888/full
| ||||||||||||||||||||||||||||||||
Geography:![]() |
Statistics: This is 1 of 2 approved meteorites from Anoual, Morocco This is 1 of 1556 approved meteorites from Morocco (plus 22 unapproved names) (plus 1 impact crater) |