header
  MetSoc Home            Publications            Contacts  
Search the Meteoritical Bulletin Database
Last update: 6 Aug 2022
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:
Include past classifications in search
Limit to approved meteorite names
Search text:  
Northwest Africa 7517
Basic information Name: Northwest Africa 7517
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 7517
Observed fall: No
Year found: 2012
Country: Morocco
Mass:help 374 g
Classification
  history:
Meteoritical Bulletin:  MB 101  (2012)  LL5
Recommended:  LL5    [explanation]

This is 1 of 3182 approved meteorites (plus 1 unapproved name) classified as LL5.   [show all]
Search for other: LL chondrites, LL chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7)
Comments: Approved 30 Oct 2012
Writeuphelp
Writeup from MB 101:

Northwest Africa 7517 (NWA 7517)

Morocco

Purchased: August 2012

Classification: Ordinary chondrite (LL5)

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

Physical characteristics: Single stone, dark, lightly weathered fusion crust, saw-cut reveals fine-grained metal/sulfide, many faint chondrules, also a few dark clasts up to 4 mm.

Petrography: (C. Agee, UNM) Microprobe examination of a polished mount shows a numerous texturally equilibrated chondrules, most plagioclase <50 μm; minor high-Ca pyroxene. Ubiquitous troilite, kamacite, and taenite; metal has minimal oxidation.

Geochemistry: (C. Agee and M. Spilde, UNM) Olivine Fa28.1±0.1, Fe/Mn=59±3, n=6; low-Ca pyroxene Fs22.8±0.6Wo2.2±1.6, Fe/Mn=33±2, n=6.

Classification: Ordinary chondrite (LL5), weathering grade W1.

Specimens: 21 g including a probe mount on deposit at UNM, Adam Bates holds the main mass.

Data from:
  MB101
  Table 0
  Line 0:
Place of purchase:Morocco
Date:P August 2012
Mass (g):374
Pieces:1
Class:LL5
Weathering grade:W1
Fayalite (mol%):28.1±0.1
Ferrosilite (mol%):22.8±0.6
Wollastonite (mol%):2.2±1.6
Classifier:C. Agee, UNM
Type spec mass (g):21
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. 101, MAPS 50, 1661, September 2015
Find references in NASA ADS:
Find references in Google Scholar:
Geography:

Morocco
Coordinates:Unknown.

Statistics:
     This is 1 of 1871 approved meteorites from Morocco (plus 24 unapproved names) (plus 1 impact crater)

Direct link to this page