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Northwest Africa 432
Basic information Name: Northwest Africa 432
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 432
Observed fall: No
Year found: 2003
Country: (Northwest Africa)
Mass:help 839 g
Classification
  history:
Recommended:  H3    [explanation]

This is 1 of 573 approved meteorites (plus 1 unapproved name) classified as H3.   [show all]
Search for other: H chondrites, H chondrites (type 3), Ordinary chondrites, and Ordinary chondrites (type 3)
Comments: Approved 20 Oct 2018
Writeuphelp
Writeup from MB 107:

Northwest Africa 432 (NWA 432)

(Northwest Africa)

Purchased: 2003

Classification: Ordinary chondrite (H3)

Petrography: Chondrules are sharply defined, but none contain isotropic mesostases. Low-Ca pyroxene phenocrysts exhibit prominent polysynthetic twinning. Olivine grains have sharp optical extinction.

Classification: H3 (estimated subtype 3.7/3.8).

Data from:
  MB107
  Table 0
  Line 0:
Place of purchase:Morocco
Date:P 2003
Mass (g):839
Pieces:1
Class:H3
Shock stage:S1
Weathering grade:W5
Fayalite (mol%):18.1
Classifier:A. Rubin, UCLA
Type spec mass (g):39.42
Type spec location:UCLA
Main mass:Nick Gessler
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)
Gessler: Nicholas Gessler, 2010 Calgary Lane, Los Angeles, CA 90077, United States (private address; updated 7 Jul 2016)
Catalogs:
References: Published in Meteoritical Bulletin, no. 107, in preparation (2018)
Find references in NASA ADS:
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Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 6505 approved meteorites from (Northwest Africa) (plus 2021 unapproved names)

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