header
  MetSoc Home            Publications            Search Meteorites  
Search the Meteoritical Bulletin Database
Last update: 23 Sep 2018
Search for: Search type: Search limits: Display: Publication:
Names
Text help
Places
Classes
Years
Contains
Starts with
Exact
Sounds like
NonAntarctic
Falls  Non-NWAs
What's new
  in the last:
Limit to approved meteorite names
Search text:  
Northwest Africa 11592
Basic information Name: Northwest Africa 11592
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 11592
Observed fall: No
Year found: 2016
Country: Algeria
Mass:help 17.9 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 11592 (NWA 11592)

Algeria

Purchased: 2016 May 1

Classification: HED achondrite (Eucrite)

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

Physical characteristics: This achondrite is covered on two surfaces with a shiny black fusion crust (~2 mm thick). The interior appears massive and is a smokey gray color. Many cracks penetrate the interior of this meteorite. A minute amount of white deposit lines one crack. Dimensions: 2.5 × 2.0 × 4.5 cm.

Petrography (L. Huang, B. Miao, H. Chen, GUT): This meteorite is an unbrecciated pigeonite-plagioclase rock with medium grain size. Textures are ophitic with medium-grained (~0.3-0.8 mm) pyroxenes and granular to lath-shaped plagioclase grains. Pyroxenes generally contain pigeonite with augite lamellae. It also contains a shock vein (width ~4 mm) and a vein associated with formation of medium-grained ferroan olivine (~50-250 μm) and sometimes fine-grained ilmenite, chromite and rare very fine-grained phosphate (apatite and merrillite). Accessories are silica, ilmenite, chromite, troilite.

Geochemistry (L. Huang, B. Miao, H. Chen, GUT): Bulk pyroxene: Fe/Mn=31.7; low-Ca pyroxene: median compositions are Mg#=37.5; Fs59.9Wo4.2 (n=25). Augite lamellae: median compositions are Mg#=50.1, Fs29.9Wo40.9 (n=12). Plagioclase: An87.2-90.0Or0.5-0.9, median An88.1Or0.7 (n=8).

Classification: Basaltic unbrecciated eucrite

Specimens: 4.2 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):17.88
Pieces:1
Class:Eucrite
Classifier:B. Miao, L.Huang, H. Chen, GUT
Type spec mass (g):4.2
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)
Find references in NASA ADS:
Find references in Google Scholar:
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)

Direct link to this page