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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:
Recommended:  H6    [explanation]

This is 1 of 6213 approved meteorites (plus 5 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 Meteoritical Bulletin, no. 110, in preparation (2021)
Find references in NASA ADS:
Find references in Google Scholar:
Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 7912 approved meteorites from (Northwest Africa) (plus 1974 unapproved names)

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