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Northwest Africa 13380
Basic information Name: Northwest Africa 13380
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 13380
Observed fall: No
Year found: 2019
Country: (Northwest Africa)
Mass:help 105.8 g
Recommended:  H7    [explanation]

This is 1 of 29 approved meteorites classified as H7.   [show all]
Search for other: H chondrites, H chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7)
Comments: Approved 5 Sep 2020
Writeup from MB 109:

Northwest Africa 13380 (NWA 13380)

(Northwest Africa)

Purchased: 2019

Classification: Ordinary chondrite (H7)

History: Purchased by Sean Tutorow in September 2019 via email photos from a source in Morocco and delivered during the 2020 Tucson Gem and Mineral Show.

Physical characteristics: Saw cuts reveal gray-brown mosaic of silicate grains, many bright metal grains visible.

Petrography: Microprobe examination shows texturally equilibrated grains of olivine, pyroxene, and plagioclase with many triple junctions. Olivines show no significant compositional variation, however pyroxenes show some variation in Fs. Grain size ranges ~50-300 µm. Metal makes up approximately 15% of this meteorite, numerous oxide veinlets are present, minor apatite detected. No chondrules were observed.

Geochemistry: (C. Agee, UNM) Olivine Fa18.6±0.1, Fe/Mn=38±2, n=6; low-Ca pyroxene Fs16.6±2.3Wo2.1±0.3, Fe/Mn=23±1, n=6.

Classification: Ordinary chondrite (H7)

Specimens: 23.2 g including a probe mount on deposit at UNM, Sean Tutorow holds the main mass.

Data from:
  Table 0
  Line 0:
Place of purchase:(Northwest Africa)
Date:P 2019
Mass (g):105.8
Shock stage:moderate
Weathering grade:moderate
Fayalite (mol%):18.6±0.1
Ferrosilite (mol%):16.6±2.3
Wollastonite (mol%):2.1±0.3
Classifier:C. Agee, UNM
Type spec mass (g):23.2
Type spec location:UNM
Main mass:Sean Tutorow
Comments:Field name G730; 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. 109, in preparation (2020)
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     This is 1 of 8495 approved meteorites from (Northwest Africa) (plus 1899 unapproved names)

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