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Northwest Africa 8184
Basic information Name: Northwest Africa 8184
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 8184
Observed fall: No
Year found: 2013
Country: (Northwest Africa)
Mass:help 4.3 kg
Meteoritical Bulletin:  MB 103  (2014)  L3.7
Recommended:  L3.7    [explanation]

This is 1 of 51 approved meteorites classified as L3.7.   [show all]
Search for other: L chondrites, L chondrites (type 3), Ordinary chondrites, and Ordinary chondrites (type 3)
Comments: Approved 4 Feb 2014
Writeup from MB 103:

Northwest Africa 8184 (NWA 8184)

(Northwest Africa)

Purchased: 2013

Classification: Ordinary chondrite (L3.7)

History: Purchased from Aziz Habibi, Erfoud, Morocco, in November 2013.

Physical characteristics: Single stone with sand blasted surface, partly preserved fusion crust. Saw cut reveals numerous chondrules and metal/sulfide grains set in a gray-green groundmass, some oxide staining.

Petrography: (C. Agee, UNM) Microprobe examination of a polished mount shows distinct chondrules, many are porphyritic with igneous zoning and fine-grained plagioclase. Iron-nickel metal and troilite throughout, often rimming chondrules, some Fe-oxide veinlets.

Geochemistry: (C. Agee and H. Miley, UNM) Olivine Fa24.1±5.3, Fe/Mn=57±15, n=31; low-Ca pyroxene Fs14.6±5.6Wo1.8±2.3, Fe/Mn=25±8, n=22; plagioclase Ab63.

Classification: Ordinary chondrite (L3.7), type 3.7 based on Fa and Fs mean values and standard deviation. Weathering grade W2, shock stage S2.

Specimens: 29.5 g end piece including a probe mount on deposit at UNM, Tomasz Jakubowski holds the main mass.

Data from:
  Table 0
  Line 0:
Place of purchase:Erfoud, Morocco
Date:P 2013
Mass (g):4300
Shock stage:S2
Weathering grade:W2
Fayalite (mol%):24.1±5.3
Ferrosilite (mol%):14.6±5.6
Wollastonite (mol%):1.8±2.3
Classifier:C. Agee, UNM
Type spec mass (g):29.5
Type spec location:UNM
Main mass:Tomasz Jakubowski
Comments:Submitted by C. Agee, UNM
   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)
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 8745 approved meteorites from (Northwest Africa) (plus 1880 unapproved names)

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