header
  MetSoc Home            Publications            Contacts  
Search the Meteoritical Bulletin Database
Last update: 28 Mar 2020
Search for: Search type: Search limits: Display: Publication:
Names
Text help
Places
Classes
Years
Contains
Starts with
Exact
Sounds like
NonAntarctic
Falls  Non-NWAs
What's new
  in the last:
Limit to approved meteorite names
Search text:  
Northwest Africa 7682
Basic information Name: Northwest Africa 7682
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 7682
Observed fall: No
Year found: 2012
Country: Morocco
Mass:help 73 g
Classification
  history:
Meteoritical Bulletin:  MB 102  (2013)  Eucrite
Recommended:  Eucrite    [explanation]

This is 1 of 459 approved meteorites (plus 1 unapproved name) classified as Eucrite.   [show all]
Search for other: Achondrites, Eucrites, and HED achondrites
Comments: Approved 26 Feb 2013
Writeuphelp
Writeup from MB 102:

Northwest Africa 7682 (NWA 7682)

Morocco

Purchased: 2012

Classification: HED achondrite (Eucrite)

History: Purchased by Adam Bates from a meteorite dealer in Morocco, August, 2012.

Physical characteristics: Single stone, some smooth fusion crust. Saw cut and broken surfaces show friable, light gray, fine grained texture.

Petrography: Microprobe examination of a polished mount shows approximately 60% pyroxene and 30% plagioclase, plus accessory silica, ilmenite, troilite, and low-Ni iron metal.

Geochemistry: (C. Agee, M. Spilde, L. Burkemper, UNM) Pyroxene Fs50.4±1.9Wo11.6±2.0, Fe/Mn=33±1, n=24; plagioclase An89.8±0.6, n=3.

Classification: Achondrite (Eucrite), basaltic eucrite. Possibly paired with NWA 7609.

Specimens: 14.6 g including a probe mount on deposit at UNM, Adam Bates holds the main mass.

Data from:
  MB102
  Table 0
  Line 0:
Place of purchase:Morocco
Date:P 2012
Mass (g):73
Pieces:1
Class:Eucrite
Ferrosilite (mol%):50.4±1.9
Wollastonite (mol%):11.6±2.0
Classifier:C. Agee, UNM
Type spec mass (g):14.6
Type spec location:UNM
Main mass:Adam Bates
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)
Catalogs:
References: Published in Meteoritical Bulletin, no. 102, MAPS 50, 1662, September 2015
Find references in NASA ADS:
Find references in Google Scholar:
Geography:

Morocco
Coordinates:Unknown.

Statistics:
     This is 1 of 1460 approved meteorites from Morocco (plus 21 unapproved names) (plus 1 impact crater)

Direct link to this page