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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
Classification
  history:
Recommended:  Eucrite-br    [explanation]

This is 1 of 225 approved meteorites classified as Eucrite-br.   [show all]
Search for other: Achondrites, Eucrites, and HED achondrites
Comments: Approved 10 Jun 2023
Writeuphelp
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:
  MB112
  Table 0
  Line 0:
Place of purchase:Morocco
Date:P March 2020
Mass (g):379
Pieces:1
Class:Eucrite-br
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
Institutions
   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)
Catalogs:
References: Published in Meteoritical Bulletin, no. 112, in preparation (2023)
Find references in NASA ADS:
Find references in Google Scholar:
Geography: 
Coordinates:Unknown.

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

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