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Northwest Africa 6943
Basic information Name: Northwest Africa 6943
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 6943
Observed fall: No
Year found: 2011
Country: (Northwest Africa)
Mass:help 269 g
Classification
  history:
Meteoritical Bulletin:  MB 102  (2013)  Eucrite-pmict
Recommended:  Eucrite-pmict    [explanation]

This is 1 of 355 approved meteorites classified as Eucrite-pmict.   [show all]
Search for other: Achondrites, Eucrites, and HED achondrites
Comments: Approved 14 Nov 2013
Writeuphelp
Writeup from MB 102:

Northwest Africa 6943 (NWA 6943)

(Northwest Africa)

Purchased: 2011 Jun 22

Classification: HED achondrite (Eucrite, polymict)

Petrography: (K. Metzler, IfP) Polymict breccia consisting of eucritic lithic clasts with ophitic, subophitic and granulitic textures and mineral fragments (pyroxene, plagioclase) set in a fine-grained light gray matrix. Most pyroxenes exhibit augite exsolution lamellae. Three Fe-rich olivines were found. Accessories are silica, ilmenite, chromite, troilite, and Ni-poor metal. Shock veins occur.

Geochemistry: Plagioclase compositions: An 90.5?2.7 (85-95; n=19. )

Classification: Polymict eucrite

Data from:
  MB102
  Table 0
  Line 0:
Place of purchase:Sainte-Marie
Date:P 2011 Jun 22
Mass (g):269
Pieces:1
Class:Eucrite-pmict
Shock stage:low
Weathering grade:low
Fayalite (mol%):58, 72, 79
Ferrosilite (mol%):38.3±20.3 (17-61; n=6)
Wollastonite (mol%):19.8±19.1 (2-42)
Classifier:K. Metzler, IfP
Type spec mass (g):20
Type spec location:IfP
Main mass:Anonymous
Comments:Submitted by K. Metzler
Institutions
   and collections		 IfP: Institut für Planetologie, Wilhelm-Klemm-Str. 10, 48149 Münster, Germany (institutional address; updated 23 Jan 2012)
Catalogs:
References: Published in Meteoritical Bulletin, no. 102, MAPS 50, 1662, September 2015
Find references in NASA ADS:
Find references in Google Scholar:
Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 7810 approved meteorites from (Northwest Africa) (plus 1971 unapproved names)

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