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Northwest Africa 10327
Basic information Name: Northwest Africa 10327
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 10327
Observed fall: No
Year found: 2015
Country: (Northwest Africa)
Mass:help 3.15 kg
Meteoritical Bulletin:  MB 105  (2016)  Eucrite-melt breccia
Recommended:  Eucrite-melt breccia    [explanation]

This is 1 of 108 approved meteorites classified as Eucrite-melt breccia.   [show all]
Search for other: Achondrites, Eucrites, and HED achondrites
Comments: Approved 21 May 2016
Writeup from MB 105:

Northwest Africa 10327 (NWA 10327)

(Northwest Africa)

Find: 2015

Classification: HED achondrite (Eucrite, melt breccia)

History: Reportedly found in Morocco, 2015 and purchased by Dave Gheesling fom Rachid Chaoui in early 2015.

Physical characteristics: Single stone with weathered fusion-crusted exterior. A saw cut shows a breccia of light-gray and white clasts set in a matrix of dark impact melt, some of it vesicular. A few small caliche-filled cracks and veins are present in the outer rind of the stone, however they do not penetrate throughout the mass.

Petrography: (C. Agee, UNM) Microprobe examination of a polished mount shows many fragmental plagioclase and pyroxene grains, and a few microgabbro clasts, bounded by melt veins and pools. Some melt zones transition into a cataclastic groundmass of very fine-grained plagioclase and pyroxene. Most pyroxenes possess exsolution lamellae. Accessory troilite, chromite, ilmenite and silica. Calcite and barite weathering products detected.

Geochemistry: (C. Agee and N. Muttik, UNM) Low-Ca pyroxene Fs61.7±0.6Wo2.5±0.7, n=8; high-Ca pyroxene Fs27.4±0.6Wo43.1±1.1, n=6; plagioclase An89.3±2.3, n=4.

Classification: Achondrite (Eucrite, melt breccia) fragmental, equilibrated basaltic eucrite grains set in a eucritic melt rock.

Specimens: 23.6 g including a probe mount on deposit at UNM, Dave Gheesling holds the main mass.

Data from:
  Table 0
  Line 0:
Place of purchase:Morocco
Mass (g):3150
Class:Eucrite-melt breccia
Shock stage:high
Weathering grade:low
Ferrosilite (mol%):61.7±0.6, 27.4±0.6
Wollastonite (mol%):2.5±0.7, 43.1±1.1
Classifier:C. Agee, UNM
Type spec mass (g):23.6
Type spec location:UNM
Main mass:Dave Gheesling
Comments:Fieldname EUC-DG3; 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)
References: Published in Meteoritical Bulletin, no. 105, MAPS 52, 2411, September 2017. http://onlinelibrary.wiley.com/doi/10.1111/maps.12944/full
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     This is 1 of 9825 approved meteorites from (Northwest Africa) (plus 1851 unapproved names)

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