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Northwest Africa 7698
Basic information Name: Northwest Africa 7698
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 7698
Observed fall: No
Year found: 2012
Country: (Northwest Africa)
Mass:help 15 g
Classification
  history:
Meteoritical Bulletin:  MB 102  (2013)  Ureilite
Recommended:  Ureilite    [explanation]

This is 1 of 515 approved meteorites classified as Ureilite.   [show all]
Search for other: Achondrites, Ureilites
Comments: Approved 1 Mar 2013
Writeuphelp
Writeup from MB 102:

Northwest Africa 7698 (NWA 7698)

(Northwest Africa)

Purchased: 2012

Classification: Ureilite

Petrography: The meteorite consists of blocky, ~2-mm sized olivine, orthopyroxene, and pigeonite grains. Olivine displays characteristic reduced Fe-poor rims. No diamonds were found.

Geochemistry: olivine: Fa22.6, reduced rims 2.5-6.3; opx: Fs15.2-17.7Wo1.7-4.6; pigeonite: Fs13-19.5Wo6-9.8

Data from:
  MB102
  Table 0
  Line 0:
Place of purchase:Morocco
Date:P 2012
Mass (g):15
Pieces:1
Class:Ureilite
Shock stage:low
Weathering grade:moderate
Fayalite (mol%):22.6
Ferrosilite (mol%):15.2-17.7; 13-19.5
Wollastonite (mol%):1.7-4.6; 6-9.8
Classifier:A. Greshake, MNB
Type spec mass (g):3.2
Type spec location:MNB
Main mass:Tomek Jakubowski
Comments:Submitted by Ansgar Greshake
Institutions
   and collections
MNB: Museum für Naturkunde, Invalidenstrasse 43, D-10115 Berlin, Germany (institutional address)
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 7005 approved meteorites from (Northwest Africa) (plus 2002 unapproved names)

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