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Northwest Africa 16124
Basic information Name: Northwest Africa 16124
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 16124
Observed fall: No
Year found: 2023
Country: (Northwest Africa)
Mass:help 4.41 kg
Meteoritical Bulletin:  MB 112  (2024)  H5
Recommended:  H5    [explanation]

This is 1 of 11801 approved meteorites (plus 23 unapproved names) classified as H5.   [show all]
Search for other: H chondrites, H chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7)
Comments: Approved 21 Aug 2023
Writeup from MB 112:

Northwest Africa 16124 (NWA 16124)

(Northwest Africa)

Purchased: 2023

Classification: Ordinary chondrite (H5)

History: Purchased in 2023 by Dean Bessey from a mineral dealer in Erfoud, Morocco

Petrography: (K. Metzler, IfP) Equilibrated ordinary chondrite with clearly visible chondrules and chondrule fragments. Secondary feldspar grains mostly <50 µm. High amounts of Fe-Ni metal, almost completely oxidized by terrestrial weathering.

Geochemistry: Mineral compositions and geochemistry: Mean olivine composition: Fa18.5±0.2 (Fa18.3-18.7; n=8); mean low-Ca pyroxene composition: Fs16.2±0.4Wo1.1±0.2 (Fs15.7-17.0 Wox0.9-1.5; n=10).

Classification: H chondrite based on mineral chemistry. Petrologic type 5 due to the equilibrated state of olivine and pyroxene and grain size of secondary plagioclase.

Data from:
  Table 0
  Line 0:
Place of purchase:Erfoud, Morocco
Date:P 2023
Mass (g):4406
Shock stage:C-S4
Weathering grade:W4
Fayalite (mol%):18.5±0.2
Ferrosilite (mol%):16.2±0.4
Wollastonite (mol%):1.1±0.2
Classifier:K. Metzler, IfP
Type spec mass (g):20
Type spec location:IfP
Main mass:Dean Bessey, Brisbane, Australia
Comments:Submitted by K. Metzler, IfP
   and collections
IfP: Institut für Planetologie, Wilhelm-Klemm-Str. 10, 48149 Münster, Germany (institutional address; updated 23 Jan 2012)
Bessey: Dean Bessey ,P.O. Box 40810, Glenfield, Auckland 1310 , New Zealand; Website (private address)
References: Published in Gattacceca J., McCubbin F. M., Grossman J. N., Schrader D. L., Cartier C., Consolmagno G., Goodrich C., Greshake A., Gross J., Joy K. H., Miao B. and Zhang B. (2024) The Meteoritical Bulletin, no. 112. Meteoritics & Planetary Science 59, 1820–1823. ?
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     This is 1 of 9790 approved meteorites from (Northwest Africa) (plus 1854 unapproved names)

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