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Northwest Africa 6989
Basic information Name: Northwest Africa 6989
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 6989
Observed fall: No
Year found: 2011
Country: Morocco
Mass:help 118 g
Classification
  history:
Meteoritical Bulletin:  MB 100  (2012)  H7
Recommended:  H7    [explanation]

This is 1 of 25 approved meteorites classified as H7.   [show all]
Search for other: H chondrites, H chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7)
Comments: Approved 29 Nov 2011
Writeuphelp
Writeup from MB 100:

Northwest Africa 6989 (NWA 6989)

Morocco

Found: 2011

Classification: Ordinary chondrite (H7)

History: Purchased by A. Habibi in 2011.

Physical characteristics: Single stone, reddish dark brown exterior with numerous weathering cracks.

Petrography: (C. Agee, UNM) Microprobe examination of a polished epoxy mount shows 75% olivine, 10% low-Ca pyroxene, 2% plagioclase, 12% kamacite and iron-oxide weathering products and veins. No chondrules present.

Geochemistry: (C. Agee and N. Wilson, UNM) EMPA. Olivine Fa19.3±0.3, Fe/Mn=39±2, n=13, low-Ca pyroxene Fs17.2±0.3Wo1.4±0.2, Fe/Mn=23±1, n=14, plagioclase Or7Ab79An14.

Classification: Ordinary chondrite (H7), significantly weathered. This is an H-chondrite, however chondrules are absent, fine-grained granoblastic texture, thus type 7.

Specimens: AHabibi holds the main mass, 21 g including a probe mount on deposit at UNM.

Data from:
  MB100
  Table 1
  Line 1559:
Place of purchase:Morocco
Date:2011
Mass (g):118
Pieces:1
Class:H7
Fayalite (mol%):19.3±0.3
Ferrosilite (mol%):17.2±0.3
Wollastonite (mol%):1.4±0.2
Classifier:C. Agee, UNM
Type spec mass (g):21
Type spec location:UNM
Main mass:AHabibi
Comments:Submitted by C. Agee
Institutions
   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)
AHabibi: Palms Hotel Club, Erfoud 52200, 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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Geography:

Morocco
Coordinates:Unknown.

Statistics:
     This is 1 of 1550 approved meteorites from Morocco (plus 22 unapproved names) (plus 1 impact crater)

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