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Northwest Africa 7702
Basic information Name: Northwest Africa 7702
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 7702
Observed fall: No
Year found: 2011
Country: (Northwest Africa)
Mass:help 50 g
Classification
  history:
Meteoritical Bulletin:  MB 102  (2013)  Eucrite-pmict
Recommended:  Eucrite-pmict    [explanation]

This is 1 of 408 approved meteorites classified as Eucrite-pmict.   [show all]
Search for other: Achondrites, Eucrites, and HED achondrites
Comments: Approved 1 Mar 2013
Writeuphelp
Writeup from MB 102:

Northwest Africa 7702 (NWA 7702)

(Northwest Africa)

Found: 2011

Classification: HED achondrite (Eucrite, polymict)

Petrography: The meteorite is partly covered with fusion crust and displays a grayish to sandy interior. It consists of differently textured basaltic and rare melt clast set into a fine-grained clastic matrix of dominantly calcic plagioclase and exsolved pyroxene. Minor phases include SiO2 polymorphs, chromite, and troilite. Few thin shock veins are present.

Geochemistry: Opx: Fs58.9-60.9Wo1.6-2.4, FeO/MnO=31-35; cpx: Fs25.1-29Wo40.5-44.8, FeO/MnO=27-35; calcic plagioclase: An86.2 (range An82.5-89.5).

Data from:
  MB102
  Table 0
  Line 0:
Place of purchase:Ensisheim, France
Date:2011
Mass (g):50
Pieces:1
Class:Eucrite-pmict
Shock stage:moderate
Weathering grade:moderate
Ferrosilite (mol%):58.9-60.9; 25.1-29
Wollastonite (mol%):1.6-2.4; 40.5-44.8
Classifier:A. Greshake, MNB
Type spec mass (g):10.6
Type spec location:MNB
Main mass:Svend Buhl
Comments:Submitted by Ansgar Greshake
Institutions
   and collections		 MNB: Museum für Naturkunde, Invalidenstraße 43, D-10115 Berlin, Germany (institutional address; updated 24 Dec 2011)
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 9699 approved meteorites from (Northwest Africa) (plus 1854 unapproved names)
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Revision
  history:
  This lists important revisions made to data for this record.

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