header
  MetSoc Home            Publications            Contacts  
Search the Meteoritical Bulletin Database
Last update: 18 May 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:
Limit to approved meteorite names
Search text:  
Northwest Africa 14439
Basic information Name: Northwest Africa 14439
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 14439
Observed fall: No
Year found: 2021
Country: (Northwest Africa)
Mass:help 9.6 kg
Classification
  history:
Recommended:  Pallasite, PMG    [explanation]

This is 1 of 49 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 14439 (NWA 14439)

(Northwest Africa)

Purchased: 2021

Classification: Pallasite-PMG

History: Purchased by Jay Piatek from a northwest -African meteorite dealer in 2021.

Physical characteristics: Exterior surface shows numerous recessed dark orange olivine pits bounded by raised metal ridges with darker patina. Saw cut surface shows angular cm-sized brown to dark-orange olivine grains set in metal. The modal abundances are approximately 60% olivine 40% metal.

Petrography: (A. Ross, C. Agee, UNM) Electron microprobe analysis reveals the presence olivine, kamacite, taenite, merrillite, silica and schreibersite, no sulfide observed.

Geochemistry: (A. Ross, C. Agee, UNM) Olivine Fa12.1±0.1, Fe/Mn=56±4, Fe/Mg=0.14±0.00, n=6; kamacite Ni=6.9±0.4, Co=0.49±0.04 (wt%), n=3; taenite Ni=29.8±5.0, Co=0.15±0.07 (wt%), n=2.

Classification: Pallasite (main group)

Specimens: 20 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:Northwest Africa
Date:P 2021
Mass (g):9600
Pieces:1
Class:Pallasite-PMG
Shock stage:Low
Weathering grade:moderate
Fayalite (mol%):12.1±0.1
Classifier:C. Agee, UNM
Type spec mass (g):20
Type spec location:UNM
Main mass:Jay Piatek
Comments:Fieldname JP-4005; 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. 110, in preparation (2021)
Find references in NASA ADS:
Find references in Google Scholar:
Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 8402 approved meteorites from (Northwest Africa) (plus 1899 unapproved names)

Direct link to this page