Meteoritical Bulletin: Entry for Northwest Africa 14316

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Northwest Africa 14316

Basic information

Name: Northwest Africa 14316
This is an OFFICIAL meteorite name.
Abbreviation: NWA 14316
Observed fall: No
Year found: 2018
Country: (Northwest Africa)
Mass: 712 g

Classification
history:

Meteoritical Bulletin:	MB 110	(2022)	CM2
Recommended:			CM2 [explanation]

This is 1 of 636 approved meteorites classified as CM2. [show all]
Search for other: Carbonaceous chondrites, Carbonaceous chondrites (type 2), CM chondrites, and CM-CO clan chondrites

Comments:

Approved 11 Nov 2021

Writeup

Writeup from MB 110:

Northwest Africa 14316 (NWA 14316)

(Northwest Africa)

Purchased: 2018 Mar

Classification: Carbonaceous chondrite (CM2)

History: The meteorite was purchased by Adrián Contreras Gómez in Errachidia, Morocco, in March 2018.

Physical characteristics: Dark-gray stones with a dark fine-grained interior.

Petrography: Abundant chondrules (average apparent diameter 430±320 µm, N=29), isolated olivine, low-Ca pyroxene and high Ca-Pyroxene mineral fragments, and small CAIs with fine-grained dust rims set in a dark matrix (~55 vol%). The mesostasis in many chondrules has been altered to phyllosilicates.

Geochemistry: Olivine (Fa_10.8±18.0, range Fa_0.4-43.4, Cr₂O₃=0.35±0.15, n=10); low-Ca Pyroxene (Fs_3.8±3.2Wo_1.0±0.5, range Fs_0.7-5.4Wo_0.4-1.0, n=8).

Data from:
  MB110
  Table 0
  Line 0:

Place of purchase:	Errachidia (Morocco)
Date:	P 2018 Mar
Mass (g):	712
Pieces:	Many
Class:	CM2
Shock stage:	low
Weathering grade:	low
Fayalite (mol%):	10.8±18.0 (0.4-43.4, n=10)
Ferrosilite (mol%):	3.8±3.2 (0.7-5.4, n=8)
Wollastonite (mol%):	1.0±0.5 (0.4-1.0, n=8)
Classifier:	Jordi Llorca (UPC)
Type spec mass (g):	22
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 9699 approved meteorites from (Northwest Africa) (plus 1854 unapproved names)

Also see:

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Revision
history:

This lists important revisions made to data for this record.

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