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Northwest Africa 8606
Basic information Name: Northwest Africa 8606
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 8606
Observed fall: No
Year found: 2014
Country: (Northwest Africa)
Mass:help 475 g
Meteoritical Bulletin:  MB 103  (2014)  Eucrite-mmict
Recommended:  Eucrite-mmict    [explanation]

This is 1 of 272 approved meteorites classified as Eucrite-mmict.   [show all]
Search for other: Achondrites, Eucrites, and HED achondrites
Comments: Approved 3 Nov 2014
Writeup from MB 103:

Northwest Africa 8606 (NWA 8606)

(Northwest Aftica)

Purchased: 2014

Classification: HED achondrite (Eucrite, monomict)

History: Purchased by Adam Aaronson in Morocco, 2014.

Physical characteristics: Single stone, no fusion crust, dark brown, irregular, sandblasted exterior. A saw cut reveals a fragmental breccia with some white feldspathic clasts set in a dark brown groundmass.

Petrography: (C. Agee, UNM) Microprobe examination of polished, saw-cut surface of deposit sample, shows a fragmental breccia with gabbroic and feldspathic clasts, and 200-300 μm pyroxene fragments set in a fine grained, cataclastic groundmass, some domains contain plumose quench melt. Many pyroxenes show exsolution lamellae. Accessory chromite, ilmenite, and silica.

Geochemistry: (C. Agee and N. Muttik, UNM). Low-Ca pyroxene Fs60.0±4.0Wo6.0±3.7, Fe/Mn=33±1, n=24; augite Fs30.2±1.8Wo41.3±2.6, Fe/Mn=34±2, n=17; plagioclase An89.0±0.6Ab10.4±0.7Or0.6±0.1, n=6.

Classification: Achondrite (eucrite, monomict breccia), moderately weathered, high shock stage.

Specimens: A total of 24.2 g including a probe mount on deposit at UNM. Aaronson holds the main mass.

Data from:
  Table 0
  Line 0:
Place of purchase:Morocco
Date:P 2014
Mass (g):475
Shock stage:high
Weathering grade:moderate
Ferrosilite (mol%):60.0±4.0, 30.2±1.8
Wollastonite (mol%):6.0±3.7, 41.3±2.6
Classifier:C. Agee, UNM
Type spec mass (g):24.2
Type spec location:UNM
Main mass:Aaronson
Comments:Field name M1759; submitted by C. Agee
   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)
References: Published in Meteoritical Bulletin, no. 103, MAPS 52, 1014, May 2017, http://onlinelibrary.wiley.com/doi/10.1111/maps.12888/full
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     This is 1 of 8904 approved meteorites from (Northwest Africa) (plus 1871 unapproved names)

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