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Northwest Africa 7210
Basic information Name: Northwest Africa 7210
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 7210
Observed fall: No
Year found: 2006
Country: (Northwest Africa)
Mass:help 24 g
Classification
  history:
Meteoritical Bulletin:  MB 100  (2012)  CM2
Recommended:  CM2    [explanation]

This is 1 of 505 approved meteorites classified as CM2.   [show all]
Search for other: Carbonaceous chondrites, Carbonaceous chondrites (type 2), CM chondrites, and CM-CO clan chondrites
Comments: Approved 14 Apr 2012
Writeuphelp
Writeup from MB 100:

Northwest Africa 7210 (NWA 7210)

(Northwest Africa)

Purchased: Jan 2006

Classification: Carbonaceous chondrite (CM2)

History: Pieces were found in a 30 cm-diameter area, south of Erfoud, Morocco, in January, 2006.

Physical characteristics: Medium dark gray, sparse fusion crust. Many chondrules and some CAIs are visible.

Petrography: (K. Armstrong, A. Ruzicka, Cascadia): Contains ~19 area% chondrules (diameter 0.21±0.12 mm), ~1% metal, AOAs, and sparse CAIs. Extensive replacement of chondrule mesostasis but <10% of the metal is replaced with secondary phases.

Geochemistry: Olivine Fa0.12-26.43 and is predominantly forsteritic (Fa mean 0.51±0.89, median 0.19, N=13).

Classification: Carbonaceous chondrite (CM2)

Specimens: 5.0 g and two polished thin sections are on deposit at Cascadia. Mr. Keith Dickson holds the main mass.

Data from:
  MB100
  Table 1
  Line 1681:
Place of purchase:Midelt, Morocco
Date:P Jan 2006
Mass (g):24
Pieces:7
Class:CM2
Shock stage:S1
Weathering grade:W1
Fayalite (mol%):0.51
Classifier:K. Armstrong, A. Ruzicka, Cascadia
Type spec mass (g):5.0
Type spec location:Cascadia
Main mass:Keith Dickson
Comments:Submitted by A. Ruzicka
Institutions
   and collections
Cascadia: Cascadia Meteorite Laboratory, Portland State University, Department of Geology, Room 17 Cramer Hall, 1721 SW Broadway, Portland, OR 97201, United States; Website (institutional address; updated 28 Oct 2011)
Catalogs:
References: Published in Meteoritical Bulletin, no. 100, MAPS 49, E1-E101 (2014)
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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