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Northwest Africa 11730
Basic information Name: Northwest Africa 11730
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 11730
Observed fall: No
Year found: 2017
Country: (Northwest Africa)
Mass:help 315 g
Meteoritical Bulletin:  MB 107  (2018)  LL6-melt breccia
Recommended:  LL6-melt breccia    [explanation]

This is 1 of 17 approved meteorites classified as LL6-melt breccia.   [show all]
Search for other: LL chondrites, LL chondrites (type 4-7), Melted chondrites, Ordinary chondrites, and Ordinary chondrites (type 4-7)
Comments: Approved 7 Apr 2018
Writeup from MB 107:

Northwest Africa 11730 (NWA 11730)

(Northwest Africa)

Purchased: 2017

Classification: Ordinary chondrite (LL6, melt breccia)

History: Purchased by Larry Atkins from Morocco in 2017.

Physical characteristics: Single stone, no fusion crust. A saw cut reveals a gray-colored breccia with pervasive dark shock melt veins and pockets.

Petrography: (C. Agee, UNM) This meteorite is a breccia of LL6 chondrite clasts set in a network of shock melt veins. Faint chondrules were observed, most metal and sulfide is in the form of finely dispersed blebs.

Geochemistry: (C. Agee, UNM) Olivine Fa32.7±0.2, Fe/Mn=66±2, n=8; low Ca pyroxene Fs26.3±0.2Wo1.8±0.3, Fe/Mn=39±1, n=7.

Classification: LL6-melt breccia

Specimens: 34.8 g including a probe mount on deposit at UNM, Larry Atkins holds the main mass.

Data from:
  Table 0
  Line 0:
Place of purchase:Morocco
Date:P 2017
Mass (g):315.4
Class:LL6-melt breccia
Shock stage:S4
Weathering grade:W2
Fayalite (mol%):32.7±0.2
Ferrosilite (mol%):26.3±0.2
Wollastonite (mol%):1.8±0.3
Classifier:C. Agee, UNM
Type spec mass (g):34.8
Type spec location:UNM
Main mass:Larry Atkins
Comments:Field name LA-4; submitted by C. Agee, UNM
   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. 107, MAPS 55, 460-462
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     This is 1 of 8904 approved meteorites from (Northwest Africa) (plus 1871 unapproved names)

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