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Northwest Africa 11602
Basic information Name: Northwest Africa 11602
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 11602
Observed fall: No
Year found: 2016
Country: Algeria
Mass:help 17.9 g
Classification
  history:
Recommended:  Eucrite    [explanation]

This is 1 of 398 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 11602 (NWA 11602)

Algeria

Purchased: 2016 May 1

Classification: HED achondrite (Eucrite)

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

Physical characteristics: Thin, shiny, black fusion crust covers 60% 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. The specimen is coherent and weathering is minimal.

Petrography (L. Huang, B. Miao, H. Chen, GUT): This meteorite is an unbrecciated pigeonite-plagioclase rock with medium grain size. With rhyolitic structure, it contains fine to medium-grained (~0.05-0.5 mm) pyroxenes and granular plagioclase grains. Pyroxenes generally contain pigeonite with augite lamellae. Accessories are silica, ilmenite, troilite and rare iron metal.

Geochemistry (L. Huang, B. Miao, H. Chen, GUT): Bulk pyroxene: Fe/Mn=31.7. Low-Ca pyroxene: median compositions are Mg#=37.3, Fs60.6Wo3.5 (n=34). augite lamellae : median compositions are Mg#=50.7, Fs27.9Wo43.4 (n=35). Plagioclase: An88.4-90.2Or0.1-0.4, median An90.6Or0.3 (n=22).

Classification: Basaltic unbrecciated eucrite

Specimens: 10.8 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):17.86
Pieces:1
Class:Eucrite
Classifier:B. Miao, L. Huang, H. Chen, GUT
Type spec mass (g):10.8
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 770 approved meteorites from Algeria (plus 26 unapproved names) (plus 4 impact craters)

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