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Northwest Africa 14544
Basic information Name: Northwest Africa 14544
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 14544
Observed fall: No
Year found: 2021
Country: (Northwest Africa)
Mass:help 8.99 kg
Classification
  history:
Meteoritical Bulletin:  MB 111  (2023)  H4/5
Recommended:  H4/5    [explanation]

This is 1 of 499 approved meteorites classified as H4/5.   [show all]
Search for other: H chondrites, H chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7)
Comments: Approved 29 Jan 2022
Writeuphelp
Writeup from MB 111:

Northwest Africa 14544 (NWA 14544)

(Northwest Africa)

Purchased: 2021 Aug

Classification: Ordinary chondrite (H4/5)

Petrography: (K. Metzler, IfP) Ordinary chondrite with some porosity, showing well-defined chondrules and chondrule fragments. Secondary feldspar grains <50 µm. High amounts of Fe-Ni metal, mostly oxidized by terrestrial weathering.

Geochemistry: Mineral compositions and geochemistry: The mean olivine composition is Fa18.4±0.2 (Fa18.1-18.6; n=12) and the mean low-Ca pyroxene composition is Fs16.1±0.3Wo1.6±0.2 (Fs15.6-16.8Wo1.2-2.0; n=12).

Classification: H chondrite based on mineral chemistry. Petrologic type 4/5 due to the well defined chondrules, but equilibrated state of olivine and low-Ca pyroxene.

Specimens: Weight of individual stones (g): 1884; 1587; 1268; 1218; 1213; 1100; 715.

Data from:
  MB111
  Table 0
  Line 0:
Place of purchase:Nouadhibou, Mauritania
Date:P 2021 Aug
Mass (g):8985
Pieces:7
Class:H4/5
Shock stage:C-S1
Weathering grade:W3-4
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 Gattacceca J., McCubbin F. M., Grossman J. N., Schrader D. L., Chabot N. L., D’Orazio M., Goodrich C., Greshake A., Gross J., Joy K. H., Komatsu M. and Miao B. (2023) The Meteoritical Bulletin, No. 111. Meteoritics & Planetary Science 58, 901–904. ?
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Photos:
CreditPhotos
Public domain photographs:
Knut Metzler      
Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 9570 approved meteorites from (Northwest Africa) (plus 1871 unapproved names)

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