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Northwest Africa 14720
Basic information Name: Northwest Africa 14720
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 14720
Observed fall: No
Year found: 2021
Country: (Northwest Africa)
Mass:help 855 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 26 Mar 2022
Writeuphelp
Writeup from MB 111:

Northwest Africa 14720 (NWA 14720)

(Northwest Africa)

Purchased: 2021

Classification: Pallasite (Main group)

Physical characteristics: Dark brown, strongly weathered meteorite fragments, some with firmly adhering sediment (quartz grains), cemented by iron oxides/hydroxides.

Petrography: (K. Metzler, IfP) Olivine grains with sizes up to 1.1 cm, embedded in ~50 vol% iron oxides/hydroxides, which also occur as crosscutting veins in olivine. No unaltered Fe-Ni metal has been found. Some relictic troilite grains are present.

Geochemistry: Mineral compositions and geochemistry: Mean olivine composition: Fa13.0±0.3 (Fa12.6-13.3); Fe/Mn (at.): 38±4; n=6.

Classification: Pallasite (main group), based on texture, grain size of olivine and olivine composition.


Writeup from MB 111:

Northwest Africa 14720 (NWA 14720)

(Northwest Africa)

Purchased: 2021

Classification: Pallasite (Main group)

Physical characteristics: Dark brown, strongly weathered meteorite fragments, some with firmly adhering sediment (quartz grains), cemented by iron oxides/hydroxides.

Petrography: (K. Metzler, IfP) Olivine grains with sizes up to 1.1 cm, embedded in ~50 vol% iron oxides/hydroxides, which also occur as crosscutting veins in olivine. No unaltered Fe-Ni metal has been found. Some relictic troilite grains are present.

Geochemistry: Mineral compositions and geochemistry: Mean olivine composition: Fa13.0±0.3 (Fa12.6-13.3); Fe/Mn (at.): 38±4; n=6.

Classification: Pallasite (main group), based on texture, grain size of olivine and olivine composition.

Data from:
  MB111
  Table 0
  Line 0:
Place of purchase:Mauritania
Date:P 2021
Mass (g):855
Pieces:many
Class:Pallasite, PMG
Shock stage:low
Weathering grade:high
Fayalite (mol%):13.0±0.3
Classifier:K. Metzler, IfP
Type spec mass (g):28
Type spec location:IfP
Main mass:Gregor Pacer, Bad Bellingen, Germany
Comments:Submitted by K. Metzler, IfP
Institutions
   and collections
IfP: Institut für Planetologie, Wilhelm-Klemm-Str. 10, 48149 Münster, Germany (institutional address; updated 23 Jan 2012)
Catalogs:
References: Published in Meteoritical Bulletin, no. 111, in preparation (2022)
Find references in NASA ADS:
Find references in Google Scholar:
Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 8777 approved meteorites from (Northwest Africa) (plus 1879 unapproved names)

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