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Northwest Africa 6967
Basic information Name: Northwest Africa 6967
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 6967
Observed fall: No
Year found: 2011
Country: (Northwest Africa)
Mass:help 50 g
Classification
  history:
Meteoritical Bulletin:  MB 105  (2016)  Eucrite-mmict
Recommended:  Eucrite-mmict    [explanation]

This is 1 of 228 approved meteorites classified as Eucrite-mmict.   [show all]
Search for other: Achondrites, Eucrites, and HED achondrites
Comments: Approved 27 Oct 2016
Writeuphelp
Writeup from MB 105:

Northwest Africa 6967 (NWA 6967)

(Northwest Africa)

Purchased: 2011

Classification: HED achondrite (Eucrite, monomict)

History: The meteorite was bought in 2011 from a local meteorite dealer in Erfoud, Morocco.

Physical characteristics: The stone is partly covered by fusion crust and displays a gray-white-speckled interior.

Petrography: The meteorite has a basaltic texture with up to 1 mm sized exsolved pyroxene and calcic plagioclase, with sometimes lath-shaped morphology. Minor phases are chromite, FeS, silica and FeNi metal. Contains several shock melt veins.

Geochemistry: low-Ca pyroxene: Fs53.8±0.5Wo5.3±0.6 (Fs52.9-54.5Wo4.3-6.5, n=10, FeO/MnO=29-31); Ca-pyroxene: Fs32.0±1.7Wo32.5±2.1 (Fs29.4-35.7Wo28.4-35.5, n=11, FeO/MnO=27-31); calcic plagioclase: An89.0±0.9 (An86.7-90.4, n=15)

Data from:
  MB105
  Table 0
  Line 0:
Place of purchase:Erfoud, Morocco
Date:P 2011
Mass (g):50
Pieces:1
Class:Eucrite-mmict
Shock stage:moderate
Weathering grade:moderate
Ferrosilite (mol%):53.8; 32.0
Wollastonite (mol%):5.3; 32.5
Classifier:A. Greshake, MNB
Type spec mass (g):10
Type spec location:MNB
Main mass:Stefan Ralew
Comments:Submitted by Ansgar Greshake
Institutions
   and collections
MNB: Museum für Naturkunde, Invalidenstraße 43, D-10115 Berlin, Germany (institutional address; updated 24 Dec 2011)
Ralew: Stefan Ralew, Kunibertstraße 29, 12524 Berlin, Germany; Website (private address)
Catalogs:
References: Published in Meteoritical Bulletin, no. 105, MAPS 52, 2411, September 2017. http://onlinelibrary.wiley.com/doi/10.1111/maps.12944/full
Find references in NASA ADS:
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Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 7035 approved meteorites from (Northwest Africa) (plus 2000 unapproved names)

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