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Northwest Africa 15369
Basic information Name: Northwest Africa 15369
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 15369
Observed fall: No
Year found: 2021
Country: (Northwest Africa)
Mass:help 541 g
Meteoritical Bulletin:  MB 111  (2023)  Eucrite-br
Recommended:  Eucrite-br    [explanation]

This is 1 of 240 approved meteorites classified as Eucrite-br.   [show all]
Search for other: Achondrites, Eucrites, and HED achondrites
Comments: Approved 12 Nov 2022
Writeup from MB 111:

Northwest Africa 15369 (NWA 15369)

(Northwest Africa)

Purchased: 2021

Classification: HED achondrite (Eucrite, brecciated)

History: Purchased in 2021 by Paul Stahura from Edwin Thompson, who had previously purchased it from a meteorite dealer in Mauritania.

Physical characteristics: Single stone with dark brown fusion crust.

Petrography: (D. Sheikh, Cascadia) Specimen is brecciated in appearance and is comprised of mm-sized, sub-angular basaltic and cumulate lithic clasts set within a finer-grained matrix having accessory SiO2-rich glass and ilmenite.

Geochemistry: Olivine (Fa84.0±1.2, range Fa82.4-85.3, Fe/Mn=38±1, n=4), Low-Ca Pyroxene (Fs44.8±12.9Wo4.4±1.0, range Fs30.7-61.3Wo2.7-5.5, Fe/Mn=29±3, n=11), Pigeonite (Fs51.8±5.1Wo12.7±5.4, range Fs42.5-60.0Wo6.6-22.2, Fe/Mn=30±2, n=19), High-Ca Pyroxene (Fs34.3±6.1Wo35.9±6.5, range Fs27.1-42.2Wo27.4-43.6, Fe/Mn=29±1, n=6), Calcic Plagioclase (An86.9±3.3, range An82.0-93.0, n=21).

Classification: Achondrite (Eucrite, brecciated).

Specimens: 84.95 g at Cascadia, main mass with Paul Stahura.

Data from:
  Table 0
  Line 0:
Place of purchase:Mauritania
Date:P 2021
Mass (g):541.2
Shock stage:moderate
Weathering grade:low
Fayalite (mol%):84.0±1.2
Ferrosilite (mol%):44.8±12.9, 51.8±5.1, 34.3±6.1
Wollastonite (mol%):4.4±1.0, 12.7±5.4, 35.9±6.5
Classifier:D. Sheikh, Cascadia
Type spec mass (g):84.95
Type spec location:Cascadia
Main mass:Paul Stahura
Comments:CML 1602; 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)
Thompson: Edwin Thompson, 5150 Dawn St., Lake Oswego, OR 97035, United States (private address)
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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     This is 1 of 9806 approved meteorites from (Northwest Africa) (plus 1855 unapproved names)

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