Meteoritical Bulletin: Entry for Mirabib 024

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Mirabib 024

Basic information

Name: Mirabib 024
This is an OFFICIAL meteorite name.
Abbreviation: There is no official abbreviation for this meteorite.
Observed fall: No
Year found: 2023
Country: Namibia
Mass: 13 g

Classification
history:

Recommended:

H3-melt breccia [explanation]

This is 1 of 4 approved meteorites classified as H3-melt breccia. [show all]
Search for other: H chondrites, H chondrites (type 3), Melted chondrites, Ordinary chondrites, and Ordinary chondrites (type 3)

Comments:

Approved 30 Sep 2024

Writeup

Writeup from MB 113:

Mirabib 024 23°25.19’S, 15°15.09’E

Swakopmund, Namibia

Find: 10 Apr 2023

Classification: Ordinary chondrite (H3, melt breccia)

History: The meteorite was found by T. Kryachko in the Namib desert during a meteorite collection expedition.

Petrography: The meteorite is a melt breccia. It is composed of devitrified melt rock matrix and mineral and rock fragments up to 1-2 mm in size. The breccia matrix is crypto- to fine-grained aggregate of silicate minerals with rare rounded inclusions of metal and sulfide and abundant voids of 20 µm in diameter. The rock fragments are composed of a clastic chondrite breccia. It contains the chondrule fragments and clastic main mass with rare well outlined chondrules.

Geochemistry: Clasts: olivine Fa_19.2±6.9; PMD Fa=36% (N=35), pyroxene Fs_13.0±5.7Wo_1.1±0.4(N=21); melt rock matrix: olivine Fa_18.8±1.0; PMD Fa=5.2% (N=43); pyroxene Fs_17.0±0.6Wo_1.9±0.7(N=14).

Data from:
  MB113
  Table 0
  Line 0:

State/Prov/County:	Swakopmund
Date:	10 Apr 2023
Latitude:	23°25.19'S
Longitude:	15°15.09'E
Mass (g):	13
Pieces:	1
Class:	H3-melt breccia
Shock stage:	S6
Weathering grade:	W2
Fayalite (mol%):	19.2±6.9 (N=35)
Ferrosilite (mol%):	13.0±5.7 (N=21)
Wollastonite (mol%):	1.1±0.4
Classifier:	Lorenz C. A., Vernad
Type spec mass (g):	2.6
Type spec location:	Vernad
Main mass:	Mr. T. Kryachko, [email protected]
Finder:	T. Kryachko
Comments:	Field name is N-21; analyst C. A. Lorenz (Vernad); submitted by Lorenz C.A., Vernad

Institutions
and collections

Vernad: Vernadsky Institute of Geochemistry and Analytical Chemistry, Russia (institutional address; updated 21 Feb 2016)

Catalogs:

References:

Published in Meteoritical Bulletin, no. 113, in preparation (2024)

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Geography:

Namibia

Coordinates:
Recommended::	(23° 25' 11"S, 15° 15' 5"E)

Statistics:
This is 1 of 37 approved meteorites from Swakopmund, Namibia
This is 1 of 50 approved meteorites from Namibia (plus 1 impact crater)

Proximity search:

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