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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 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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     This is 1 of 1903 approved meteorites from Morocco (plus 27 unapproved names) (plus 1 impact crater)

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