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Northwest Africa 13526
Basic information Name: Northwest Africa 13526
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 13526
Observed fall: No
Year found: 2016
Country: Morocco
Mass:help 25 g
Classification
  history:
Recommended:  R5    [explanation]

This is 1 of 40 approved meteorites classified as R5.   [show all]
Search for other: Rumuruti chondrites, Rumuruti chondrites (type 4-7)
Comments: Approved 19 Nov 2020
Writeuphelp
Writeup from MB 109:

Northwest Africa 13526 (NWA 13526)

Morocco

Find: 2016

Classification: Rumuruti chondrite (R5)

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) Chondrite with chondrules (up to 1.5mm) set in a fine-grained brown matrix containing secondary recrystallized sodic plagioclase (25±5 µm). Accessory phases include pentlandite, chromite, and iron oxides.

Geochemistry: Olivine (Fa40.4±0.9, range Fa37.8-42.3, n=58), High-Ca Pyroxene (Fs10.0±0.8Wo46.0±0.8, range Fs9.2-11.9Wo45.2-47.8, n=13).

Classification: Rumuruti Chondrite (R5)

Specimens: 5.1 g at UCLA; main mass with Matthew Stream.

Data from:
  MB109
  Table 0
  Line 0:
Date:2016
Mass (g):25
Pieces:1
Class:R5
Shock stage:S2
Weathering grade:W3
Fayalite (mol%):40.4±0.9
Ferrosilite (mol%):10.0±0.8
Wollastonite (mol%):46.0±0.8
Classifier:D. Sheikh, FSU
Type spec mass (g):5.1
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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Geography:

Morocco
Coordinates:Unknown.

Statistics:
     This is 1 of 1991 approved meteorites from Morocco (plus 31 unapproved names) (plus 1 impact crater)

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