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Northwest Africa 11599
Basic information Name: Northwest Africa 11599
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 11599
Observed fall: No
Year found: 2016
Country: Algeria
Mass:help 22.1 g
Classification
  history:
Recommended:  Eucrite    [explanation]

This is 1 of 405 approved meteorites 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 11599 (NWA 11599)

Algeria

Purchased: 2016 May 1

Classification: HED achondrite (Eucrite)

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

Physical characteristics: Single stone with black fusion crust. A saw cut reveals a mosaic of gray, coarse-grained, interlocking crystals.

Petrography (L. Huang, B. Miao, H. Chen, GUT): Unbrecciated cumulate lithologies containing coarse-grained (~0.5-1.1 mm) gabbros composed principally of low-Ca clinopyroxene and calcic plagioclase (~20-40 vol%) with minor chromite (coarse-grained ~0.5-1.0 mm). Texture is equigranular with subequal amounts of pyroxene and plagioclase grains.

Geochemistry (L. Huang, B. Miao, H. Chen, GUT): Bulk pyroxene: Fe/Mn=28.6. Low-Ca pyroxene of cumulate lithologies: median compositions are Mg#=63.1, Fs36.0Wo2.4 (n=29). High-Ca pyroxene of cumulate lithologies: median compositions are Mg#=73.2, Fs14.5Wo46.0 (n=23). Plagioclase: An89.4-91.4Or0.1-0.7, median An90.2Or0.5 (n=18).

Classification: Gabbroic cumulate eucrite

Specimens: 8.9 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):22.07
Pieces:1
Class:Eucrite
Classifier:B. Miao, L. Huang, H. Chen, GUT
Type spec mass (g):8.9
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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