Meteoritical Bulletin: Entry for Northwest Africa 16124

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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: 4.41 kg

Classification
history:

Recommended:

H5 [explanation]

This is 1 of 11372 approved meteorites (plus 22 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

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: Fa_18.5±0.2(Fa_18.3-18.7; n=8); mean low-Ca pyroxene composition: Fs_16.2±0.4Wo_1.1±0.2(Fs_15.7-17.0Wox0.9-1.5; 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:
  MB112
  Table 0
  Line 0:

Place of purchase:	Erfoud, Morocco
Date:	P 2023
Mass (g):	4406
Pieces:	1
Class:	H5
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

Institutions
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)

Catalogs:

References:

Published in Meteoritical Bulletin, no. 112, in preparation (2023)

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Geography:

Coordinates:

Unknown.

Statistics:
This is 1 of 9429 approved meteorites from (Northwest Africa) (plus 1876 unapproved names)

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