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Northwest Africa 11598
Basic information Name: Northwest Africa 11598
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 11598
Observed fall: No
Year found: 2016
Country: Algeria
Mass:help 3.9 g
Classification
  history:
Recommended:  Howardite    [explanation]

This is 1 of 354 approved meteorites classified as Howardite.   [show all]
Search for other: Achondrites, HED achondrites, and Howardites
Comments: Approved 9 Feb 2018
Writeuphelp
Writeup from MB 107:

Northwest Africa 11598 (NWA 11598)

Algeria

Purchased: 2016 May 1

Classification: HED achondrite (Howardite)

History: Purchased by Miao Bing-an in 2016 in Morocco.

Physical characteristics: No fusion crust.

Petrography (L. Huang, B. Miao, H. Chen, GUT): Breccia containing a variety of diogenite lithologies with ~40 vol% eucrite lithologies (mostly basaltic lithologies). Basaltic eucrite detritus (composed of granular pyroxene and plagioclase) as veins invade the orthopyroxenitic diogenite lithologies (mainly composed of orthopyroxene). Accessories are silica, ilmenite, chromite, troilite.

Geochemistry (L. Huang, B. Miao, H. Chen, GUT): Bulk pyroxene: Fe/Mn=30.9; Orthopyroxene of diogenite lithologies: median compositions are Mg#=65.5, Fs33.6Wo2.6 (n=24). Low-Ca pyroxene of basaltic eucrite lithologies: median compositions are Mg#=37.1, Fs61.5Wo2.2 (n=15). High-Ca pyroxene of basaltic eucrite lithologies: median compositions are Mg#=48.5, Fs30.9Wo40.0 (n=12). Plagioclase: median An91.7Or0.3 (n=11).

Classification: Polymict brecciated howardite

Specimens: 1.5 g and polished thin section are deposited in GUT. The remaining material is held by the anonymous finder.

Data from:
  MB107
  Table 0
  Line 0:
Place of purchase:Morocco
Date:P 2016 May 1
Mass (g):3.90
Pieces:1
Class:Howardite
Classifier:B. Miao, L.Huang, H. Chen, GUT
Type spec mass (g):1.5
Type spec location:GUT
Main mass:GUT
Comments:Submitted by Bingkui Miao
Institutions
   and collections
GUT: College of Earth Sciences, Guilin University of Technology, 12 Jiangan Road, Guilin 541004, China (institutional address; updated 18 Oct 2012)
Catalogs:
References: Published in Meteoritical Bulletin, no. 107, in preparation (2018)
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Photos:
CreditPhotos
Public domain photographs:
Zhipeng Xia   
Geography:

Algeria
Coordinates:Unknown.

Statistics:
     This is 1 of 772 approved meteorites from Algeria (plus 26 unapproved names) (plus 4 impact craters)

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