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Northwest Africa 7272
Basic information Name: Northwest Africa 7272
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 7272
Observed fall: No
Year found: 2012
Country: (Northwest Africa)
Mass:help 58.7 g
Classification
  history:
Meteoritical Bulletin:  MB 101  (2012)  Martian (shergottite)
Recommended:  Martian (shergottite)    [explanation]

This is 1 of 189 approved meteorites (plus 1 unapproved name) classified as Martian (shergottite).   [show all]
Search for other: Martian meteorites
Comments: Approved 30 Oct 2012
Writeuphelp
Writeup from MB 101:

Northwest Africa 7272 (NWA 7272)

(Northwest Africa)

Purchased: 2012 Mar

Classification: Martian meteorite (Shergottite)

History: Purchased by Greg Hupé from a dealer in Zagora, Morocco, in 2012 March.

Physical characteristics: A single dark brown stone (58.7 g) broken into four pieces that fit together.

Petrography: (A. Irving and S. Kuehner, UWS) Microgabbroic texture. Constituent minerals are olivine (exhibiting little compositional zoning), clinopyroxene, shocked plagioclase, pyrrhotite, ilmenite, Ti-chromite and rare merrillite. The plagioclase appears to be clear maskelynite containing sparse vesicles.

Geochemistry: Olivine (Fa41.9-43.8, FeO/MnO = 49-54), pigeonite (Fs26.0-33.0Wo18.4-10.1, FeO/MnO = 26-32), subcalcic augite (Fs18.6Wo37.3, FeO/MnO = 25), plagioclase (An57.3-65.2Or0.5-0.2).

Classification: Martian (shergottite). This specimen is essentially identical to NWA 7032 in its microgabbroic texture and mineralogy, implying that these are separate but paired stones.

Specimens: 11.9 g is on deposit at UWB. GHupé holds the main mass.

Data from:
  MB101
  Table 0
  Line 0:
Place of purchase:Zagora
Date:P 2012 Mar
Mass (g):58.7
Pieces:4
Class:Martian (shergottite)
Shock stage:high
Weathering grade:low
Fayalite (mol%):41.9-43.8
Ferrosilite (mol%):26.0-33.0; 18.6
Wollastonite (mol%):18.4-10.1; 37.3
Classifier:A. Irving and S. Kuehner, UWS
Type spec mass (g):11.9
Type spec location:UWB
Main mass:G. Hupe
Comments:Submitted by A. Irving
Institutions
   and collections
UWS: University of Washington, Department of Earth and Space Sciences, 70 Johnson Hall, Seattle, WA 98195, United States (institutional address; updated 15 Jan 2012)
UWB: University of Washington, Box 353010 Seattle, WA 98195, United States (institutional address; updated 27 Jul 2012)
Hupe: (old address—now see GHupé or AHupé) G. and A. Hupe, 2616 Lake Youngs Court SE, Renton, WA 98058., United States (private address)
Catalogs:
References: Published in Meteoritical Bulletin, no. 101, MAPS 50, 1661, September 2015
Find references in NASA ADS:
Find references in Google Scholar:
Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 6781 approved meteorites from (Northwest Africa) (plus 2047 unapproved names)

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