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Northwest Africa 14135
Basic information Name: Northwest Africa 14135
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 14135
Observed fall: No
Year found: 2018
Country: Morocco
Mass:help 34 g
Recommended:  CV3    [explanation]

This is 1 of 593 approved meteorites (plus 1 unapproved name) classified as CV3.   [show all]
Search for other: Carbonaceous chondrites, Carbonaceous chondrites (type 3), CV chondrites, and CV-CK clan chondrites
Comments: Approved 31 Aug 2021
Writeup from MB 110:

Northwest Africa 14135 (NWA 14135)


Purchased: March 2018

Classification: Carbonaceous chondrite (CV3)

History: Purchased by the owner from F. Kuntz in March 2018, via internet.

Physical characteristics: The single, 34 g stone is approximately 3 × 2 × 1.5 cm with a dark brown exterior. Well-defined chondrules are evident in slices, as is a dark-gray clast approximately 1 cm across.

Petrography: (C. Herd and M. Holt, UAb) Optical and microprobe examination of a polished thin section shows well-defined Fo-rich chondrules up to 3100 μm in diameter, with an average width of approximately 1000 μm. Inclusions within chondrules include Fe-Cr-rich metal and Fe sulfide. Matrix is very fine-grained and comprises ~35% of the sample. A dark inclusion comprises ~20% of the sample and consists of isolated grains of olivine and pyroxene in a fine-grained, clastic matrix. AOAs and CAIs are also present.

Geochemistry: (C. Herd and M. Holt, UAb) Data obtained by EMP examination of carbon-coated thin section. Main lithology: Olivine average Fa8.9±13.7, range Fa0.2-44 (n=34); Low-Ca Pyroxene Fs1.6±1.7Wo2.6±3.4 (n=8); High-Ca Pyroxene Fs8.6±9.3Wo39.0±8.7 (n=6). Dark inclusion: Olivine Fa12.6±13.5, range Fa0.3-46 (n=17); Low-Ca Pyroxene Fs9.5±10.8Wo2.8±1.8 (n=13); High-Ca Pyroxene Fs5.2Wo44.1 (n=1).

Classification: CV chondrite, CV3 reduced

Specimens: Type specimen consisting of 11.32 g piece and a 5.99 g end cut from which thin section was made, is at UAb. Remainder with J. Shea.

Data from:
  Table 0
  Line 0:
Place of purchase:France
Date:P March 2018
Mass (g):34
Shock stage:low
Weathering grade:low
Fayalite (mol%):8.9±13.7 (n=34)
Ferrosilite (mol%):1.6±1.7 (n=8)
Wollastonite (mol%):2.6±3.4
Classifier:C. Herd and M. Holt, UAb
Type spec mass (g):17.3
Type spec location:UAb
Main mass:J. Shea
Comments:Submitted by C. Herd
   and collections
UAb: 1-26 Earth Sciences Building, University of Alberta, Edmonton, AB, T6G 2E3, Canada, Canada; Website (institutional address; updated 17 Oct 2011)
Kuntz: Fabien Kuntz, France; Website (private address)
References: Published in Meteoritical Bulletin, no. 110, in preparation (2021)
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     This is 1 of 1894 approved meteorites from Morocco (plus 27 unapproved names) (plus 1 impact crater)

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