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Northwest Africa 14730
Basic information Name: Northwest Africa 14730
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 14730
Observed fall: No
Year found: 2019
Country: (Northwest Africa)
Mass:help 60 g
Recommended:  Lunar (frag. breccia)    [explanation]

This is 1 of 19 approved meteorites classified as Lunar (frag. breccia).   [show all]
Search for other: Lunar meteorites
Comments: Approved 19 Mar 2022
Writeup from MB 111:

Northwest Africa 14730 (NWA 14730)

(Northwest Africa)

Purchased: 2019

Classification: Lunar meteorite (frag. breccia)

History: Purchased February, 2019, by anonymous collector from a Moroccan dealer

Physical characteristics: Many small identical looking sand polished stones. No fusion crust present. Saw cut reveals a clast-rich brecciated interior.

Petrography: (A. Ross, UNM; D. Dickens, NMMS) This meteorite is a fragmental breccia of plagioclase, pyroxene, and olivine grains, with pyroxene being significantly more abundant than olivine. This meteorite is clast-rich and contains many highly impinged, nested, and sub-micron clasts of varying lithologies set in a sparse matrix. Analysis of BSE image with ImageJ shows a mode of ~71% plagioclase, ~23% pyroxene, ~5% olivine, with remainder being opaques including kamacite and troilite. Some Cr-spinels with Mg+Al+Ti were detected.

Geochemistry: (A. Ross, UNM) olivine Fa: 30.0±5.0, Fe/Mn=91±9, n=8; clinopyroxene Fs35.8±116.3Wo19.1±11.5, Fe/Mn=55±10, n=10; plagioclase An95.0±2.2, n=6;

Classification: Lunar fragmental breccia

Specimens: 12 g including a probe mount on deposit at UNM, anonymous collector holds the main mass.

Data from:
  Table 0
  Line 0:
Place of purchase:Tucson, Arizona
Date:P 2019
Mass (g):60 g
Class:Lunar (frag. breccia)
Shock stage:high
Weathering grade:moderate
Fayalite (mol%):30.0±5.0
Ferrosilite (mol%):35.8±116.3
Wollastonite (mol%):19.1±11.5
Classifier:D. Dickens, NMMS; C. Agee, UNM
Type spec mass (g):12g
Type spec location:UNM
Main mass:Anonymous
Comments:Field name DD76; submitted by D. Dickens
   and collections
UNM: Institute of Meteoritics MSC03 2050 University of New Mexico Albuquerque NM 87131-1126 USA, United States; Website (institutional address; updated 12 Feb 2015)
References: Published in Meteoritical Bulletin, no. 111, in preparation (2022)
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     This is 1 of 8495 approved meteorites from (Northwest Africa) (plus 1899 unapproved names)

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