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Northwest Africa 11965
Basic information Name: Northwest Africa 11965
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 11965
Observed fall: No
Year found: 2018
Country: (Northwest Africa)
Mass:help 57.3 g
Meteoritical Bulletin:  MB 107  (2018)  CM2
Recommended:  CM2    [explanation]

This is 1 of 603 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 6 Oct 2018
Writeup from MB 107:

Northwest Africa 11965 (NWA 11965)

(Northwest Africa)

Purchased: 2018

Classification: Carbonaceous chondrite (CM2)

History: Purchased by Aziz Habibi in Morocco 2018.

Physical characteristics: Complete individual stone, partially covered with fusion crust. A broken surface reveals black, fined-grained interior; very friable; some CAIs are visible.

Petrography: (C. Agee, UNM) This meteorite consists of scattered porphyritic chondrules set in a fine grained matrix. The matrix makes up approximately 75% of this meteorite. Ubiquitous Fe-sulfide, Fe,Ni-sulfide, Fe, Ni-metal, phyllosilicates, and carbonates are present in the matrix.

Geochemistry: (C. Agee, UNM) Olivine Fa12.5±17.6, range Fa0.5-44.4, Cr2O3=0.32±0.16, n=11; low-Ca pyroxene Fs3.5±3.3Wo3.4±0.5, n=2. Oxygen isotopes (K. Ziegler, UNM) done by laser fluorination δ17O=1.681, δ18O=10.426, Δ17O=-3.825, normalized, all permil.

Classification: Carbonaceous chondrite (CM2)

Specimens: 11.5 g including a probe mount on deposit at UNM, Aziz Habibi holds the main mass.

Data from:
  Table 0
  Line 0:
Place of purchase:Morocco
Date:P 2018
Mass (g):57.3
Shock stage:low
Weathering grade:low
Fayalite (mol%):12.5±17.6
Ferrosilite (mol%):3.5±3.3
Wollastonite (mol%):3.4±0.5
Classifier:C. Agee, UNM
Type spec mass (g):11.5
Type spec location:UNM
Main mass:Aziz Habibi
Comments:Submitted by C. Agee
Plots: O isotopes:  
   and collections
UNM: Institute of Meteoritics MSC03 2050 University of New Mexico Albuquerque NM 87131-1126 USA, United States; Website (institutional address; updated 12 Feb 2015)
References: Published in Meteoritical Bulletin, no. 107, MAPS 55, 460-462
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     This is 1 of 8037 approved meteorites from (Northwest Africa) (plus 1947 unapproved names)

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