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Northwest Africa 11571
Basic information Name: Northwest Africa 11571
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 11571
Observed fall: No
Year found: 2017
Country: (Northwest Africa)
Mass:help 504 g
Classification
  history:
Recommended:  R4    [explanation]

This is 1 of 55 approved meteorites classified as R4.   [show all]
Search for other: Rumuruti chondrites, Rumuruti chondrites (type 4-7)
Comments: Approved 16 Jan 2018
Writeuphelp
Writeup from MB 107:

Northwest Africa 11571 (NWA 11571)

(Northwest Africa)

Purchased: March 2017

Classification: Rumuruti chondrite (R4)

History: Purchased by Sean Tutorow and Brahim Tahiri from several diferent meteorite hunters in Morocco.

Petrography: Pyroxene is rare, but some low-Ca pyroxene grains exhibit polysynthetic twinning. The only two grains that were analyzed are both Ca-pyroxene. Opaque phases consist of small grains of metal and both small and large grains of pyrrhotite. Chondrules are well defined; chondrule types include BO, PP, PO, POP, C, GOP and RP. Some

Data from:
  MB107
  Table 0
  Line 0:
Place of purchase:Erfoud, Morocco
Date:P March 2017
Mass (g):504.25
Pieces:1
Class:R4
Shock stage:S1
Weathering grade:W2
Fayalite (mol%):37.2±1.7 (n=19)
Ferrosilite (mol%):22.1±1.4 (n=2)
Wollastonite (mol%):41.6±1.6 (n=2)
Classifier:A. Rubin, UCLA
Type spec mass (g):33.97
Type spec location:UCLA
Main mass:Sean Tutorow
Comments:Submitted by Alan Rubin
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, in preparation (2018)
Find references in NASA ADS:
Find references in Google Scholar:
Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 6423 approved meteorites from (Northwest Africa) (plus 2023 unapproved names)

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