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Northwest Africa 13535
Basic information Name: Northwest Africa 13535
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 13535
Observed fall: No
Year found: 2009
Country: (Northwest Africa)
Mass:help 4.45 kg
Classification
  history:
Recommended:  L4    [explanation]

This is 1 of 1709 approved meteorites (plus 24 unapproved names) classified as L4.   [show all]
Search for other: L chondrites, L chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7)
Comments: Approved 14 Nov 2020
Writeuphelp
Writeup from MB 109:

Northwest Africa 13535 (NWA 13535)

(Northwest Africa)

Purchased: 2009 Jun

Classification: Ordinary chondrite (L4)

History: Purchased from a Moroccan mineral dealer at the meteorite show in Ensisheim, France

Physical characteristics: Angular fragment with black appearence without fusion crust.

Petrography: (K. Metzler, IfP) Unbrecciated shock-darkened ordinary chondrite with clearly visible chondrules of various textural types.

Geochemistry: Mineral compositions and geochemistry: The mean olivine composition is Fa23.3±0.5 (Fa22.5-24.1; n=13). The mean low-Ca pyroxene composition is Fs19.5±2.9Wo1.0±1.0 (Fs16.1-27.3Wo0.1-3.7; n=12).

Classification: L chondrite based on olivine and pyroxene chemistry. Petrologic type 4 based on the equilibrated state of olivine and unequilibrated state of low-Ca pyroxene.

Data from:
  MB109
  Table 0
  Line 0:
Place of purchase:Ensisheim, France
Date:P 2009 Jun
Mass (g):4450
Pieces:1
Class:L4
Shock stage:C-S3
Weathering grade:W3
Fayalite (mol%):23.3±0.5
Ferrosilite (mol%):19.5±2.9
Wollastonite (mol%):1.0±1.0
Classifier:K. Metzler, IfP
Type spec mass (g):20
Type spec location:IfP
Main mass:anonymous
Comments:Shock-darkened; 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. 109, in preparation (2020)
Find references in NASA ADS:
Find references in Google Scholar:
Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 7937 approved meteorites from (Northwest Africa) (plus 1960 unapproved names)

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