|
Northwest Africa 8688 | |||||||||||||||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Basic information | Name: Northwest Africa 8688 This is an OFFICIAL meteorite name. Abbreviation: NWA 8688 Observed fall: No Year found: 2014 Country: (Northwest Africa) Mass: 440 g | ||||||||||||||||||||||||||||||
Classification history: |
This is 1 of 6775 approved meteorites (plus 6 unapproved names) classified as H6. [show all] Search for other: H chondrites, H chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7) | ||||||||||||||||||||||||||||||
Comments: | Approved 29 Nov 2014 | ||||||||||||||||||||||||||||||
Writeup |
Writeup from MB 103:
Northwest Africa 8688 (NWA 8688) (Northwest Africa) Purchased: 2014 Classification: Ordinary chondrite (H6) History: Purchased by Adam Aaronson in Morocco, 2014. Physical characteristics: Single stone, no fusion crust, irregular sandblasted exterior, saw cut reveals numerous small metal/sulfide grains and small chondrules set in a dark brown groundmass. Petrography: (C. Agee, UNM) Microprobe examination polished mount shows equilibrated, recrystallized chondrules, plagioclase up to 100 μm. Kamacite, taenite, troilite, merrilite, Cl-rich apatite. Geochemistry: (C. Agee and N. Muttik, UNM) Olivine Fa19.1±0.2, Fe/Mn=39±2, n=9; low-Ca pyroxene Fs17.0±0.3Wo1.4±0.2, Fe/Mn=24±1, n=14; plagioclase An12.5±0.2Ab82.0±0.8Or5.6±0.6, n=3. Classification: Ordinary chondrite (H6). W1, S3. Specimens: A total of 20 g including a probe mount on deposit at UNM, Aaronson holds the main mass. | ||||||||||||||||||||||||||||||
Data from: MB103 Table 0 Line 0: |
|
||||||||||||||||||||||||||||||
Institutions and collections |
UNM: Institute of Meteoritics
MSC03 2050
University of New Mexico
Albuquerque NM 87131-1126
USA, United States; Website (institutional address; updated 12 Feb 2015) Aaronson: Sahara Overland Ltd., Harhora, Temara, 12000, Morocco (private address; updated 3 Jan 2010) |
||||||||||||||||||||||||||||||
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 9627 approved meteorites from (Northwest Africa) (plus 1865 unapproved names) | ||||||||||||||||||||||||||||||
Also see: |
This lists the most popular meteorites among people who looked up this meteorite.
| ||||||||||||||||||||||||||||||
Revision history: |
This lists important revisions made to data for this record.
|