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Northwest Africa 16480
Basic information Name: Northwest Africa 16480
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 16480
Observed fall: No
Year found: 2023
Country: (Northwest Africa)
Mass:help 1414 g
Classification
  history:
Recommended:  Diogenite-olivine    [explanation]

This is 1 of 25 approved meteorites classified as Diogenite-olivine.   [show all]
Search for other: Achondrites, Diogenites, and HED achondrites
Comments: Approved 26 Feb 2024
Writeuphelp
Writeup from MB 113:

Northwest Africa 16480 (NWA 16480)

(Northwest Africa)

Purchased: 2023 Feb

Classification: HED achondrite (Diogenite, olivine)

Petrography: (K. Metzler, IfP) Achondritic breccia consisting of pyroxenite clasts with sizes up to several mm, embedded in small amounts of fine-grained related debris. Considerable amounts of olivine and plagioclase fragments are present. Accessories are Cr-spinel, F-apatite, and Fe-Ni metal.

Geochemistry: Mineral compositions and geochemistry: Pyroxene composition: Fs24.8±0.9Wo1.8±0.2 (Fs23.6-26.2Wo1.5-2-2); mean Fe/Mn (at.): 33.9; n=14. Olivine composition: Fa31.6±0.7 (Fa30.4-33.3); Fe/Mn (at.): 52.9; n=15. Plagioclase composition: An92.6±2.0 Or0.1±0.2 (An88.6-95.9Or0.0-0.5); n=13.

Classification: Brecciated olivine-bearing diogenite, based on texture and mineral chemistry.

Specimens: Largest piece: 388 g

Data from:
  MB113
  Table 0
  Line 0:
Place of purchase:Mauritania
Date:P 2023 Feb
Mass (g):1414
Pieces:Several
Class:Diogenite-olivine
Shock stage:low
Weathering grade:moderate
Fayalite (mol%):31.6±0.7
Ferrosilite (mol%):24.8±0.9
Wollastonite (mol%):1.8±0.2
Classifier:K. Metzler, IfP
Type spec mass (g):20
Type spec location:IfP
Main mass:Mohamed Ali Loud
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. 113, in preparation (2024)
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Photos:
CreditPhotos
Public domain photographs:
Knut Metzler      
Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 9746 approved meteorites from (Northwest Africa) (plus 1855 unapproved names)

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