header
  MetSoc Home            Publications            Contacts  
Search the Meteoritical Bulletin Database
Last update: 5 Sep 2024
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 15997
Basic information Name: Northwest Africa 15997
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 15997
Observed fall: No
Year found: 2021
Country: (Northwest Africa)
Mass:help 503 g
Classification
  history:
Meteoritical Bulletin:  MB 112  (2024)  Pallasite
Recommended:  Pallasite    [explanation]

This is 1 of 81 approved meteorites classified as Pallasite.   [show all]
Search for other: Metal-rich meteorites, Pallasites
Comments: Approved 30 Jul 2023
Writeuphelp
Writeup from MB 112:

Northwest Africa 15997 (NWA 15997)

(Northwest Africa)

Purchased: August 2021

Classification: Pallasite

Physical characteristics: Brownish mass composed in large part of weathering products

Petrography: (J. Gattacceca, CEREGE) Olivine crystals several mm in size, embedded in and croscutt by iron oxides and oxihydroxides (~50 vol%). No metal was detected. The only surviving opaque phase is schreibersite.

Geochemistry: Olivine Fa 13.2, FeO/MnO=36 (n=2).

Classification: Pallasite. Possibly paired with NWA 5693 based on purchase history.

Specimens: Type specimen at CEREGE, main mass with Kuntz

Data from:
  MB112
  Table 0
  Line 0:
Place of purchase:Guelmin, Morocco
Date:P August 2021
Mass (g):503
Pieces:several
Class:Pallasite
Weathering grade:extreme
Fayalite (mol%):13.2 (n=2)
Magnetic suscept.:5.00
Classifier:J. Gattacceca, CEREGE
Type spec mass (g):37.6
Type spec location:CEREGE
Main mass:Kuntz
Finder:anonymous
Comments:work name K547; submitted by Jérôme Gattacceca
Institutions
   and collections		 CEREGE: CEREGE BP 80 Avenue Philibert, Technopole de l'Arbois 13545 Aix-en-Provence Cedex 4 France, France (institutional address; updated 10 Jun 2023)
Kuntz: Fabien Kuntz, France; Website (private address)
Catalogs:
References: Published in Gattacceca J., McCubbin F. M., Grossman J. N., Schrader D. L., Cartier C., Consolmagno G., Goodrich C., Greshake A., Gross J., Joy K. H., Miao B. and Zhang B. (2024) The Meteoritical Bulletin, no. 112. Meteoritics & Planetary Science 59, 1820–1823. ?
Find references in NASA ADS:
Find references in Google Scholar:
Photos:
CreditPhotos
Photos uploaded by members of the Encyclopedia of Meteorites.
    (Caution, these are of unknown reliability)
McKinley Collection   
Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 9914 approved meteorites from (Northwest Africa) (plus 1841 unapproved names)

Direct link to this page