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Boudenib 001
Basic information Name: Boudenib 001
     This is an OFFICIAL meteorite name.
Abbreviation: There is no official abbreviation for this meteorite.
Observed fall: No
Year found: 2021
Country: Morocco
Mass:help 185 g
Meteoritical Bulletin:  MB 111  (2023)  Diogenite-melt breccia
Recommended:  Diogenite-melt breccia    [explanation]

This is 1 of 10 approved meteorites classified as Diogenite-melt breccia.   [show all]
Search for other: Achondrites, Diogenites, and HED achondrites
Comments: Approved 1 Oct 2022
Writeup from MB 111:

Boudenib 001        31°50.583’N, 3°43.633’W

Centre-South, Morocco

Find: 2021

Classification: HED achondrite (Diogenite, melt breccia)

History: Many stones were found and collected in the desert region close to Boudenib in 2021 by nomads. This material was later purchased by Nbark Boisofa.

Physical characteristics: Multiple stones and fragments that are weathered; some of them are partly covered by a dark brown fusion crust.

Petrography: (D. Sheikh, Cascadia) This sample is made up of two distinct lithologies; Lithology 1 (host) comprises ~85 vol. % of the analyzed thin section and represents a diogenite melt breccia composed of zoned, tabular low-Ca pyroxene grains (up to ~ 1 mm) set within a melt-textured matrix speckled with Fe-sulfides (primarily pentlandite) and containing accessory calcic plagioclase, olivine, kamacite, chromite, and merrillite. Lithology 2 comprises ~15 vol. % of the analyzed thin section (in the form of a few scattered clasts) and represents a mixed breccia composed of zoned, diogenitic tabular low-Ca pyroxene grains (up to ~1 mm, ~40 vol. %), reversely-zoned, eucritic tabular pigeonite grains (some displaying augite exsolution lamellae, up to ~1 mm, ~25 vol. %), and accessory chromite, merrillite, ilmenite, pentlandite, troilite, kamacite, olivine, and SiO2-rich glass, all of which is sub-ophitically enclosed within a matrix of skeletal and lath-shaped calcic plagioclase (~90 μm, ~35 vol. %). The sample is crosscut by multiple weathering veins containing Fe-hydroxides.

Geochemistry: Lithology 1: Diogenite Low-Ca Pyroxene (Fs25.0±2.5Wo1.7±0.4, range Fs22.5-32.4Wo1.1-3.4, Fe/Mn=30±2, n=47), Olivine (Fa33.9±1.6, range Fa32.6-36.8, Fe/Mn=48±3, n=5), Calcic Plagioclase (An87.4±0.8, range An86.6-88.9, n=8); Lithology 2: Diogenite Low-Ca Pyroxene (Fs26.9±4.5Wo2.6±1.4, range Fs19.1-34.8Wo0.9-5.2, Fe/Mn=28±2, n=16), Eucrite Pigeonite (Fs35.8±3.8Wo10.0±4.8, range Fs28.7-41.7Wo5.5-24.2, Fe/Mn=24±2, n=19), Eucrite High-Ca Pyroxene (Fs28.9±9.3Wo31.7±8.9, range Fs22.3-35.5Wo25.4-38.0, Fe/Mn=23±2, n=2), Olivine (Fa48.9±0.2, range Fa48.8-49.1, Fe/Mn=46±1, n=2), Calcic Plagioclase (An87.9±0.6, range An87.3-89.9, n=16).

Classification: HED achondrite (Diogenite-melt breccia) due to the fact that the entirety of the host lithology (Lithology 1, occupies ~85 vol. % of section) and ~40% of Lithology 2 (occupies ~15 vol. % of section) is texturally/compositionally representative of a diogenite-melt breccia.

Specimens: 20.06 g at Cascadia, main mass with Nbark Boisofa.

Data from:
  Table 0
  Line 0:
Origin or pseudonym:Desert region nearby to Boudenib.
Mass (g):185
Class:Diogenite-melt breccia
Shock stage:moderate
Weathering grade:high
Fayalite (mol%):33.9±1.6; 48.9±0.2
Ferrosilite (mol%):25.0±2.5; 26.9±4.5, 35.8±3.8, 28.9±9.3
Wollastonite (mol%):1.7±0.4; 2.6±1.4, 10.0±4.8, 31.7±8.9
Classifier:D. Sheikh, Cascadia
Type spec mass (g):20.06
Type spec location:Cascadia
Main mass:Nbark Boisofa
Comments:CML 1520; submitted by Daniel Sheikh
   and collections
Cascadia: Cascadia Meteorite Laboratory, Portland State University, Department of Geology, Room 17 Cramer Hall, 1721 SW Broadway, Portland, OR 97201, United States; Website (institutional address; updated 28 Oct 2011)
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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Public domain photographs:
Daniel Sheikh      

     Recommended::   (31° 50' 35"N, 3° 43' 38"W)

     This is 1 of 48 approved meteorites from Centre-South, Morocco (plus 1 unapproved name) (plus 1 impact crater)
     This is 1 of 2118 approved meteorites from Morocco (plus 32 unapproved names) (plus 1 impact crater)
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