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Northwest Africa 13682
Basic information Name: Northwest Africa 13682
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 13682
Observed fall: No
Year found: 2020
Country: (Northwest Africa)
Mass:help 2.88 kg
Classification
  history:
Meteoritical Bulletin:  MB 110  (2022)  H6
Recommended:  H6    [explanation]

This is 1 of 6825 approved meteorites (plus 6 unapproved names) classified as H6.   [show all]
Search for other: H chondrites, H chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7)
Comments: Approved 23 Jan 2021
Writeuphelp
Writeup from MB 110:

Northwest Africa 13682 (NWA 13682)

(Northwest Africa)

Purchased: 2020 Oct 2

Classification: Ordinary chondrite (H6)

History: Purchased from a Moroccan mineral dealer at the mineral show in Torino, Italy. Purportedly found near El Aaiun, Western Sahara.

Petrography: (K. Metzler, IfP) Ordinary chondrite with strongly recrystallized texture and only few chondrule relicts. Secondary feldspar grains mostly >50 µm.

Geochemistry: Mineral compositions and geochemistry: The mean olivine composition is Fa19.1±0.5 (18.5-20; n=10). The mean low-Ca pyroxene composition is Fs16.5±0.2 Wo1.5±0.2 (Fs16.2-16.9 Wo1.2-1.7; n=13).

Classification: H chondrite based on mineral chemistry. Petrologic type 6 based on the equilibrated state of olivine and pyroxene and large grain size of secondary plagioclase.

Specimens: Main mass, Stefano Crivello (Via Bobbio 9a/18) and I. Pardini, 16137 Genova, Italy. 20 g, IfP

Data from:
  MB110
  Table 0
  Line 0:
Place of purchase:Torino, Italy
Date:P 2020 Oct 2
Mass (g):2879
Pieces:1
Class:H6
Shock stage:S1
Weathering grade:W2-3
Fayalite (mol%):19.1±0.5
Ferrosilite (mol%):16.5±0.2
Wollastonite (mol%):1.5±0.2
Classifier:K. Metzler, IfP
Type spec mass (g):20
Type spec location:IfP
Main mass:S. Crivello and I. Pardini
Comments:Submitted by K. Metzler, IfP
Institutions
   and collections		 IfP: Institut für Planetologie, Wilhelm-Klemm-Str. 10, 48149 Münster, Germany (institutional address; updated 23 Jan 2012)
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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