header
  MetSoc Home            Publications            Contacts  
Search the Meteoritical Bulletin Database
Last update: 4 Dec 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 14440
Basic information Name: Northwest Africa 14440
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 14440
Observed fall: No
Year found: 2021
Country: Morocco
Mass:help 1790 g
Classification
  history:
Recommended:  Pallasite, PMG    [explanation]

This is 1 of 52 approved meteorites (plus 1 unapproved name) classified as Pallasite, PMG.   [show all]
Search for other: Main group pallasites, Metal-rich meteorites, and Pallasites
Comments: Approved 5 Dec 2021
Writeuphelp
Writeup from MB 110:

Northwest Africa 14440 (NWA 14440)

Morocco

Purchased: 2021

Classification: Pallasite-PMG

History: Purchased by Jay Piatek from Habib Naji in 2021.

Physical characteristics: Exterior is irregular, dark brown, and weathered lacking fusion crust. Saw cut surface shows angular cm-sized dark-orange, translucent olivine grains set in metal. There are also smaller scattered olivines set in the host metal. The modal abundances are approximately 60% metal, 40% olivine.

Petrography: (A. Ross, C. Agee, UNM) Reflected light microscopy and electron microprobe analysis reveal the presence olivine, kamacite, rare taenite, troilite, chromite and schreibersite.

Geochemistry: (A. Ross, C. Agee, UNM) Olivine Fa12.0±0.2, Fe/Mn=39±3, Fe/Mg=0.14±0.00, n=6; kamacite Ni=6.8±0.1, Co=0.65±0.03 (wt%), n=5.

Classification: Pallasite (main group)

Specimens: 35 g including a probe mount on deposit at UNM, Jay Piatek holds the main mass.

Data from:
  MB110
  Table 0
  Line 0:
Place of purchase:Morocco
Date:P 2021
Mass (g):1790
Pieces:1
Class:Pallasite-PMG
Shock stage:Low
Weathering grade:moderate
Fayalite (mol%):12.0±0.2
Classifier:C. Agee, UNM
Type spec mass (g):35
Type spec location:UNM
Main mass:Jay Piatek
Comments:Fieldname JP-4023; 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 Gattacceca J., McCubbin F.M., Grossman J., Bouvier A., Chabot N.L., D'Orazio M., Goodrich C., Greshake A., Gross J., Komatsu M., Miao B., and Schrader D. (2022) The Meteoritical Bulletin, No. 110. Meteorit. Planet. Sci. 1-4
Find references in NASA ADS:
Find references in Google Scholar:
Geography:

Morocco
Coordinates:Unknown.

Statistics:
     This is 1 of 1904 approved meteorites from Morocco (plus 27 unapproved names) (plus 1 impact crater)

Direct link to this page