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Northwest Africa 1089
Basic information Name: Northwest Africa 1089
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 1089
Observed fall: No
Year found: 2003
Country: (Northwest Africa)
Mass:help 1136 g
Classification
  history:
Meteoritical Bulletin:  MB 107  (2018)  H5
Recommended:  H5    [explanation]

This is 1 of 11567 approved meteorites (plus 23 unapproved names) classified as H5.   [show all]
Search for other: H chondrites, H chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7)
Comments: Approved 20 Oct 2018
Writeuphelp
Writeup from MB 107:

Northwest Africa 1089 (NWA 1089)

(Northwest Africa)

Purchased: 2003

Classification: Ordinary chondrite (H5)

Petrography: There are rapidly cooled, cellular, metal-troilite assemblages. Some metal and sulfide grains are elongated. Chondrules are recrystallized; some are readily discernable; others are poorly defined. Plagioclase grains average ~20 µm in size. Olivine exhibits weak mosaic extinction. Some low-Ca pyroxene grains display shock-induced polysynthetic twinning.

Data from:
  MB107
  Table 0
  Line 0:
Place of purchase:Erfoud, Morocco
Date:P 2003
Mass (g):1136
Pieces:1
Class:H5
Shock stage:S4
Weathering grade:W3
Fayalite (mol%):18.0
Classifier:A. Rubin, UCLA
Type spec mass (g):32.90
Type spec location:UCLA
Main mass:Michael Cottingham
Comments:Submitted by Simone de Leuw
Institutions
   and collections		 UCLA: Institute of Geophysics and Planetary Physics, University of California, Los Angeles, CA 90095-1567, United States (institutional address; updated 17 Oct 2011)
Catalogs:
References: Published in Meteoritical Bulletin, no. 107, MAPS 55, 460-462
Find references in NASA ADS:
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Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 9699 approved meteorites from (Northwest Africa) (plus 1854 unapproved names)
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Revision
  history:
  This lists important revisions made to data for this record.

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