Meteoritical Bulletin: Entry for Northwest Africa 13295

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Northwest Africa 13295

Basic information

Name: Northwest Africa 13295
This is an OFFICIAL meteorite name.
Abbreviation: NWA 13295
Observed fall: No
Year found: 2019
Country: Algeria
Mass: 203 g

Classification
history:

Recommended:

CV3 [explanation]

This is 1 of 624 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 3 Jul 2020

Writeup

Writeup from MB 109:

Northwest Africa 13295 (NWA 13295)

Algeria

Find: 2019

Classification: Carbonaceous chondrite (CV3)

History: Purchased by Stephen Amara from Mustapha Hnini in Algeria on 26 Dec 2019.

Physical characteristics: Single stone with dark-brown fusion crust.

Petrography: (D. Sheikh, FSU) Sample is a chondrite containing abundant chondrules (Av. 1.2±0.1 mm), CAIs (Av. 1.4±0.1 mm), and Fe-oxides in an opaque matrix.

Geochemistry: Olivine (Fa_30.0±21.2, range Fa_5.7-63.4, n=44), Low-Ca Pyroxene (Fs_4.2±1.5Wo_2.4±0.9, range Fs_2.0-6.4Wo_1.6-3.5, n=8).

Classification: Carbonaceous Chondrite (CV3, CVOxA subgroup). Lack of Fe-Ni metal points to the oxidized subgroup. Magnetic susceptibility points to CVOxA subgroup (Bonal et al., 2020).

Specimens: 27.27 grams at UCLA; main mass with Stephen Amara.

Bibliography:

Bonal L., Gattacceca J., Garenneac A., Eschriga J., Rochette P., and Krämer Ruggiu L. (2020) Water and heat: New constraints on the evolution of the CV chondrite parent body. Geochim. Cosmochim. Acta 276 363-383. (link)

Data from:
  MB109
  Table 0
  Line 0:

Date:	2019
Mass (g):	203
Pieces:	1
Class:	CV3
Shock stage:	S2
Weathering grade:	low
Fayalite (mol%):	30.0±21.2 (N=44)
Ferrosilite (mol%):	4.2±1.5 (N=8)
Wollastonite (mol%):	2.4±0.9 (N=8)
Magnetic suscept.:	3.54
Classifier:	D. Sheikh, FSU
Type spec mass (g):	27.27
Type spec location:	UCLA
Main mass:	Stephen Amara
Comments:	Submitted by Daniel Sheikh

Institutions
and collections

UCLA: Institute of Geophysics and Planetary Physics, University of California, Los Angeles, CA 90095-1567, United States (institutional address; updated 17 Oct 2011)
FSU: Department of Geological Sciences, Florida State University, Tallahassee FL 32306-4100, United States (institutional address; updated 16 Dec 2010)

Catalogs:

References:

Published in Meteoritical Bulletin, no. 109, in preparation (2020)

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Photos:

Credit	Photos
Public domain photographs:
Daniel Sheikh

Geography:

Algeria

Coordinates:

Unknown.

Statistics:
This is 1 of 1315 approved meteorites from Algeria (plus 30 unapproved names) (plus 4 impact craters)

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