Meteoritical Bulletin: Entry for Northwest Africa 13663

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Northwest Africa 13663

Basic information

Name: Northwest Africa 13663
This is an OFFICIAL meteorite name.
Abbreviation: NWA 13663
Observed fall: No
Year found: 2019
Country: (Northwest Africa)
Mass: 250 g

Classification
history:

Meteoritical Bulletin:	MB 110	(2022)	Eucrite-br
Recommended:			Eucrite-br [explanation]

This is 1 of 237 approved meteorites classified as Eucrite-br. [show all]
Search for other: Achondrites, Eucrites, and HED achondrites

Comments:

Approved 10 Jan 2021

Writeup

Writeup from MB 110:

Northwest Africa 13663 (NWA 13663)

(Northwest Africa)

Find: 2019

Classification: HED achondrite (Eucrite, brecciated)

History: Purchased in October, 2019 by Shun-Chung Yang from Habib-naji Naji in Morocco.

Physical characteristics: Two stones with slightly weathered fusion crust.

Petrography: (D. Sheikh, FSU) Specimen is a breccia composed of cumulate clasts containing calcic plagioclase laths, high-Ca pyroxene, and pigeonite (250±50 µm) set within a finer-grained matrix containing ilmenite (some containing up to 8.9 wt% Cr₂O₃) and SiO₂-rich glass.

Geochemistry: Pigeonite (Fs_49.7±15.1Wo_10.2±5.2, range Fs_33.0-75.1Wo_6.2-22.5, FeO/MnO=28±6, n=32), High-Ca Pyroxene (Fs_58.1±1.2Wo_29.0±4.8, range Fs_57.1-59.4Wo_25.0-34.3, FeO/MnO=35±7, n=3), Calcic Plagioclase (An_90.8±1.7, range An_87.1-92.8, n=13).

Classification: Achondrite (eucrite, brecciated)

Specimens: 26.1 g at UCLA; main mass with Shun-Chung Yang.

Data from:
  MB110
  Table 0
  Line 0:

Date:	2019
Mass (g):	250
Pieces:	2
Class:	Eucrite-br
Shock stage:	moderate
Weathering grade:	low
Ferrosilite (mol%):	49.7±15.1, 58.1±1.2
Wollastonite (mol%):	10.2±5.2, 29.0±4.8
Classifier:	D. Sheikh, FSU
Type spec mass (g):	26.1
Type spec location:	UCLA
Main mass:	Shun-Chung Yang
Comments:	Submitted by Daniel Sheikh

Institutions
and collections

UCLA: Institute of Geophysics and Planetary Physics, University of California, Los Angeles, CA 90095-1567, United States (institutional address; updated 17 Oct 2011)
FSU: Department of Geological Sciences, Florida State University, Tallahassee FL 32306-4100, United States (institutional address; updated 16 Dec 2010)

Catalogs:

References:

Published in Gattacceca J., McCubbin F.M., Grossman J., Bouvier A., Chabot N.L., D'Orazio M., Goodrich C., Greshake A., Gross J., Komatsu M., Miao B., and Schrader D. (2022) The Meteoritical Bulletin, No. 110. Meteorit. Planet. Sci. 1-4

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Geography:

Coordinates:

Unknown.

Statistics:
This is 1 of 9699 approved meteorites from (Northwest Africa) (plus 1854 unapproved names)

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Revision
history:

This lists important revisions made to data for this record.

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