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Northwest Africa 16132
Basic information Name: Northwest Africa 16132
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 16132
Observed fall: No
Year found: 2022
Country: Algeria
Mass:help 7.4 g
Classification
  history:
Meteoritical Bulletin:  MB 112  (2024)  Lunar (melt breccia)
Recommended:  Lunar (melt breccia)    [explanation]

This is 1 of 28 approved meteorites classified as Lunar (melt breccia).   [show all]
Search for other: Lunar meteorites
Comments: Approved 29 Sep 2023
Writeuphelp
Writeup from MB 112:

Northwest Africa 16132 (NWA 16132)

Algeria

Find: 2022

Classification: Lunar meteorite (melt breccia)

History: Found in Algeria in 2022 and later purchased by David Fletcher from a meteorite dealer.

Physical characteristics: Two stones with weathered fusion crust.

Petrography: (D. Sheikh, Cascadia) Sample is a breccia comprised of sub-angular mm-sized lithic clasts (primarily anorthositic clasts, but also noritic anorthosites and impact melt clasts) set within a dark, melt-rich matrix containing regions of melt schlieren and brown tinted devitrified glass. Accessory phases identified include SiO2-rich glass, ilmenite, troilite, and Fe-Ni metal.

Geochemistry: Pigeonite (Fs39.4±12.2Wo13.1±5.6, range Fs21.3-57.2Wo5.7-21.7, Fe/Mn=56±6, n=11), High-Ca Pyroxene (Fs17.7±2.2Wo35.2±5.0, range Fs14.5-20.8Wo26.7-39.7, Fe/Mn=49±6, n=7), Calcic Plagioclase (An96.3±0.8, range An94.4-97.4, n=17).

Classification: Lunar (melt breccia).

Specimens: 1.91 g at Cascadia, main mass with David Fletcher.

Data from:
  MB112
  Table 0
  Line 0:
Date:2022
Mass (g):7.4
Pieces:2
Class:Lunar (melt breccia)
Shock stage:high
Weathering grade:moderate
Ferrosilite (mol%):39.4±12.2, 17.7±2.2
Wollastonite (mol%):13.1±5.6, 35.2±5.0
Classifier:D. Sheikh, Cascadia
Type spec mass (g):1.91
Type spec location:Cascadia
Main mass:David Fletcher
Comments:CML 1633; 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 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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Geography:

Algeria
Coordinates:Unknown.

Statistics:
     This is 1 of 1376 approved meteorites from Algeria (plus 31 unapproved names) (plus 4 impact craters)

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