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Northwest Africa 13522
Basic information Name: Northwest Africa 13522
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 13522
Observed fall: No
Year found: 2018
Country: Morocco
Mass:help 19 g
Classification
  history:
Meteoritical Bulletin:  MB 109  (2020)  CV3
Recommended:  CV3    [explanation]

This is 1 of 470 approved meteorites (plus 2 unapproved names) classified as CV3.   [show all]
Search for other: Carbonaceous chondrites, Carbonaceous chondrites (type 3), CV chondrites, and CV-CK clan chondrites
Comments: Approved 16 Dec 2020
Writeuphelp
Writeup from MB 109:

Northwest Africa 13522 (NWA 13522)

Morocco

Find: 2018

Classification: Carbonaceous chondrite (CV3)

History: Purchased in 2020 by Matthew Stream from a seller in Morocco.

Physical characteristics: Single stone with dark-brown fusion crust.

Petrography: (D. Sheikh, FSU) Sample is a carbonaceous chondrite composed of abundant chondrules (Av. 1 mm, up to 4 mm), CAIs (Av. 2 mm, up to 6 mm), and isolated mineral fragments set in a mostly opaque, slightly fine-grained matrix. Accessory phases include pentlandite, and magnetite. Magnetite has 1.0±0.3 wt% Cr2O3.

Geochemistry: Olivine (Fa14.0±20.6, range Fa0.5-75.9, n=62), Low-Ca Pyroxene (Fs1.4±0.5Wo1.0±0.2, range Fs0.6-2.4Wo0.8-1.5, n=15).

Classification: Carbonaceous Chondrite (CV3)

Specimens: 4 grams at UCLA; main mass with Matthew Stream.

Data from:
  MB109
  Table 0
  Line 0:
Date:2018
Mass (g):19
Pieces:1
Class:CV3
Shock stage:S2
Weathering grade:low
Fayalite (mol%):14.0±20.6
Ferrosilite (mol%):1.4±0.5
Wollastonite (mol%):1.0±0.2
Classifier:D. Sheikh, FSU
Type spec mass (g):4
Type spec location:UCLA
Main mass:Matthew Stream
Comments:Submitted by Daniel Sheikh
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)
FSU: Department of Geological Sciences, Florida State University, Tallahassee FL 32306-4100, United States (institutional address; updated 16 Dec 2010)
Catalogs:
References: Published in Meteoritical Bulletin, no. 109, in preparation (2020)
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Photos:
CreditPhotos
Public domain photographs:
Daniel Sheikh      
Geography:

Morocco
Coordinates:Unknown.

Statistics:
     This is 1 of 2082 approved meteorites from Morocco (plus 31 unapproved names) (plus 1 impact crater)
Also see:
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Revision
  history:
  This lists important revisions made to data for this record.

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