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Northwest Africa 15932
Basic information Name: Northwest Africa 15932
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 15932
Observed fall: No
Year found: 2020
Country: (Northwest Africa)
Mass:help 379 g
Meteoritical Bulletin:  MB 112  (2024)  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 10 Jun 2023
Writeup from MB 112:

Northwest Africa 15932 (NWA 15932)

(Northwest Africa)

Purchased: March 2020

Classification: HED achondrite (Eucrite, brecciated)

History: Purchased by Jasper Spencer from a meteorite dealer in Morroco in March 2020.

Physical characteristics: Single stone with weathered fusion crust.

Petrography: (D. Sheikh, Cascadia) Sample is comprised of sub-angular, mm-sized basaltic clasts set within a fine-grained matrix containing accessory SiO2-rich glass, troilite, Ti-bearing chromite, and ilmenite.

Geochemistry: Low-Ca Pyroxene (Fs60.9±0.9Wo2.5±0.7, range Fs58.7-62.2Wo1.8-4.6, Fe/Mn=31±4, n=29), Pigeonite (Fs48.6±2.0Wo17.6±1.8, range Fs46.9-50.8Wo15.6-19.0, Fe/Mn=29±5, n=3), Sub-calcic Augite (Fs32.8±2.2Wo36.0±2.5, range Fs30.3-35.6Wo32.8-38.9, Fe/Mn=29±3, n=4), High-Ca Pyroxene (Fs26.8±0.6Wo42.5±0.9, range Fs25.5-28.0Wo40.4-43.4, Fe/Mn=30±3, n=10), Calcic Plagioclase (An88.5±2.1, range An81.1-90.6, n=28).

Classification: HED Achondrite (Eucrite, brecciated).

Specimens: 29.6 g at Cascadia, main mass with Jasper Spencer.

Data from:
  Table 0
  Line 0:
Place of purchase:Morocco
Date:P March 2020
Mass (g):379
Shock stage:moderate
Weathering grade:moderate
Ferrosilite (mol%):60.9±0.9, 48.6±2.0, 32.8±2.2, 26.8±0.6
Wollastonite (mol%):2.5±0.7, 17.6±1.8, 36.0±2.5, 42.5±0.9
Classifier:D. Sheikh, Cascadia
Type spec mass (g):29.6
Type spec location:Cascadia
Main mass:Jasper Spencer
Comments:CML 1549, Jasper sample B; 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., 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 9829 approved meteorites from (Northwest Africa) (plus 1851 unapproved names)

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