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Northwest Africa 14317
Basic information Name: Northwest Africa 14317
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 14317
Observed fall: No
Year found: 2020
Country: (Northwest Africa)
Mass:help 1450 g
Classification
  history:
Recommended:  CO3    [explanation]

This is 1 of 642 approved meteorites (plus 1 unapproved name) classified as CO3.   [show all]
Search for other: Carbonaceous chondrites, Carbonaceous chondrites (type 3), CM-CO clan chondrites, and CO chondrites
Comments: Approved 20 Dec 2021
Writeuphelp
Writeup from MB 110:

Northwest Africa 14317 (NWA 14317)

(Northwest Africa)

Purchased: June 2020

Classification: Carbonaceous chondrite (CO3)

History: The meteorite was purchased by Adrián Contreras Gómez in Tinduf, Algeria, in June 2020.

Physical characteristics: Dark brown stones. Saw cuts reveal numerous chondrules set in a brown-gray groundmass.

Petrography: Abundant chondrules (average apparent diameter 400±350 µm, N=72) and minor CAIs set in a fine-grained matrix (~45 vol%). Opaque phases are FeNi metal and troilite.

Geochemistry: Olivine (Fa24.8±17.5, range Fa0.9-44.4, Cr2O3=0.13±0.09, Mn/Fe=90±26, n=21); low-Ca Pyroxene (Fs9.8±11.2 Wo1.1±1.0, range Fs0.9-16.5 Wo0.3-1.2, n=11).

Data from:
  MB110
  Table 0
  Line 0:
Place of purchase:Tinduf (Algeria)
Date:P June 2020
Mass (g):1450
Pieces:Many
Class:CO3
Shock stage:low
Weathering grade:low
Fayalite (mol%):24.8±17.5 (0.9-44.4, n=21)
Ferrosilite (mol%):9.8±11.2 (0.9-16.5, n=11)
Wollastonite (mol%):1.1±1.0 (0.3-1.2, n=11)
Classifier:Jordi Llorca, UPC
Type spec mass (g):27
Type spec location:UPC
Main mass:Adrian Contreras Gómez
Comments:Submitted by Jordi Llorca (UPC)
Institutions
   and collections		 UPC: Institut de Tècniques Energètiques, Universitat Politècnica de Catalunya Diagonal 647, ed. ETSEIB, 08028 Barcelona, Spain, Spain (institutional address; updated 3 May 2015)
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 9429 approved meteorites from (Northwest Africa) (plus 1876 unapproved names)

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