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Northwest Africa 11603
Basic information Name: Northwest Africa 11603
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 11603
Observed fall: No
Year found: 2016
Country: Algeria
Mass:help 10.1 g
Classification
  history:
Meteoritical Bulletin:  MB 107  (2018)  Eucrite
Recommended:  Eucrite    [explanation]

This is 1 of 598 approved meteorites (plus 1 unapproved name) classified as Eucrite.   [show all]
Search for other: Achondrites, Eucrites, and HED achondrites
Comments: Approved 9 Feb 2018
Writeuphelp
Writeup from MB 107:

Northwest Africa 11603 (NWA 11603)

Algeria

Purchased: 2016 May 1

Classification: HED achondrite (Eucrite)

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

Physical characteristics: Black fusion crust covers 40% of the exterior of this sample. No fractures exist. Cleaving this achondrite revealed an interior with coarse-grained matrix containing an even distribution of white laths.

Petrography (L. Huang, B. Miao, H. Chen, GUT): This meteorite is a unbrecciated pigeonite-plagioclase rock with medium grain size. Ophitic-gabbro texture with fine to medium-grained (~0.05-0.45 mm) pyroxenes and granular to lath-shaped plagioclase grains. Pyroxenes generally contain pigeonite with augite lamellae. Accessories are silica, ilmenite, troilite.

Geochemistry (L. Huang, B. Miao, H. Chen, GUT): Bulk pyroxene: Fe/Mn=32.7. Low-Ca pyroxene: median compositions are Mg#=36.5, Fs60.5Wo4.8 (n=26). Augite lamellae : median compositions are Mg#=51.2, Fs27.4Wo43.9 (n=14). Plagioclase: An89.8-91.5Or0.1-0.8, median An90.6Or0.3 (n=23).

Classification: Basaltic unbrecciated Eucrite

Specimens: 4.6 g and polished thin section are deposited in GUT

Data from:
  MB107
  Table 0
  Line 0:
Place of purchase:Morocco
Date:P 2016 May 1
Mass (g):10.10
Pieces:1
Class:Eucrite
Classifier:B. Miao, L. Huang, H. Chen, GUT
Type spec mass (g):4.6
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, MAPS 55, 460-462
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Photos:
CreditPhotos
Public domain photographs:
Zhipeng Xia   
Geography:

Algeria
Coordinates:Unknown.

Statistics:
     This is 1 of 1356 approved meteorites from Algeria (plus 30 unapproved names) (plus 4 impact craters)
Also see:
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Revision
  history:
  This lists important revisions made to data for this record.

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