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Northwest Africa 6560
Basic information Name: Northwest Africa 6560
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 6560
Observed fall: No
Year found: 2010
Country: Morocco
Mass:help 5.89 kg
Classification
  history:
Meteoritical Bulletin:  MB 100  (2012)  Howardite
Recommended:  Howardite    [explanation]

This is 1 of 374 approved meteorites classified as Howardite.   [show all]
Search for other: Achondrites, HED achondrites, and Howardites
Comments: Approved 3 Oct 2011
Writeuphelp
Writeup from MB 100:

Northwest Africa 6560 (NWA 6560)

Morocco

Found: 2010

Classification: HED achondrite (Howardite)

History: A. Aaronson purchased 10 stones with a total mass of 5888 g in Erfoud, Morocco, in 2010-2011.

Physical characteristics: Fresh with flow oriented fusion crust. Complete stones range in size from 36 to 1600 g.

Petrography: Fine to medium clast size (<1 mm to 4 mm) of diogenite pyroxenes and clasts, and eucrites; clast modes (vol %): diogenites 74, eucrites 24, chromite and metal 2. Shock level, S2-S4, variable shock levels in clasts. Weathering grade, W0/1.

Geochemistry: Diogenite orthopyroxene Fs23.6-36.8Wo1.8-2.3 (FeO/MnO=30); chromite Cr# 80-89. Eucrite orthopyroxene Fs64.2Wo3.2; pigeonite Fs53.7Wo12.2; plagioclase An89-95.4.

Classification: Achondrite (howardite)

Specimens: 24.4 g on deposit at NAU. Aaronson holds the main mass.

Data from:
  MB100
  Table 1
  Line 1418:
Place of purchase:Erfoud
Date:2010
Mass (g):5888
Pieces:10
Class:Howardite
Shock stage:S3-4
Weathering grade:low
Ferrosilite (mol%):64.2; 23.6-36.8
Wollastonite (mol%):3.2; 2.3
Classifier:Bunch/Wittke
Type spec mass (g):20.2
Type spec location:NAU
Main mass:Aaronson
Comments:Submitted by Bunch
Institutions
   and collections
NAU: Geology, Bldg 12 Knoles Dr Northern Arizona University, Flagstaff, AZ 86011, United States; Website (institutional address; updated 12 Apr 2012)
Aaronson: Sahara Overland Ltd., Harhora, Temara, 12000, Morocco (private address; updated 3 Jan 2010)
Catalogs:
References: Published in Meteoritical Bulletin, no. 100, MAPS 49, E1-E101 (2014)
Find references in NASA ADS:
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Photos:
CreditPhotos
Photos uploaded by members of the Encyclopedia of Meteorites.
    (Caution, these are of unknown reliability)
Anna Morris   
Dominik Stoeckli   
Michael S. Scherman   
Geography:

Morocco
Coordinates:Unknown.

Statistics:
     This is 1 of 1405 approved meteorites from Morocco (plus 16 unapproved names) (plus 1 impact crater)

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