Meteoritical Bulletin: Entry for Northwest Africa 10719

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Northwest Africa 10719

Basic information

Name: Northwest Africa 10719
This is an OFFICIAL meteorite name.
Abbreviation: NWA 10719
Observed fall: No
Year found: 2015
Country: Mauritania
Mass: 397 g

Classification
history:

Meteoritical Bulletin:	MB 105	(2016)	CK5
Recommended:			CK5 [explanation]

This is 1 of 217 approved meteorites classified as CK5. [show all]
Search for other: Carbonaceous chondrites, Carbonaceous chondrites (equilibrated), CK chondrites, CK chondrites (type 4-6), and CV-CK clan chondrites

Comments:

Approved 20 Jun 2016

Writeup

help

Writeup from MB 105:

Northwest Africa 10719 (NWA 10719)

Mauritania

Purchased: 2015 Dec 1

Classification: Carbonaceous chondrite (CK5)

History: Purchased 12/1/15 in Mauritania. Recovered from near the border region of Western Sahara, Mauritania and Algeria.

Physical characteristics: Single stone. Weathered exterior; saw cut of the deposit sample reveals a few distinct chondrules set in a fine grained, dark-gray matrix. One CAI, 5 × 2 mm, was observed.

Petrography: (C. Agee, UNM) Microprobe examination of a polished mount shows a few distinct chondrules, most in the size range 500-1500 μm. Matrix olivines, iron-oxide and sulfide blebs were observed throughout.

Geochemistry: (C. Agee and M. Spilde, UNM) Olivine Fa_31.9±0.5, Fe/Mn=107±7, Cr₂O₃=0.01±0.01 wt%, NiO=0.38±0.04 wt%, n=21; low-Ca pyroxene Fs_27.4±1.3Wo_0.7±0.1, n=11.

Classification: Carbonaceous chondrite (CK5), CK based on presence of high Ni-content in olivine and iron-oxide.

Specimens: 21 g including a probe mount on deposit at UNM, DPitt holds the main mass.

Data from:
  MB105
  Table 0
  Line 0:

Place of purchase:	Mauritania
Date:	P 2015 Dec 1
Mass (g):	396.8
Pieces:	1
Class:	CK5
Shock stage:	low
Weathering grade:	moderate
Fayalite (mol%):	31.9±0.5
Ferrosilite (mol%):	27.4±1.3
Wollastonite (mol%):	0.7±0.1
Classifier:	C. Agee, UNM
Type spec mass (g):	21
Type spec location:	UNM
Main mass:	DPitt
Comments:	Field name MCVICH024; submitted by C. Agee, UNM

Institutions
and collections

UNM: Institute of Meteoritics MSC03 2050 University of New Mexico Albuquerque NM 87131-1126 USA, United States; Website (institutional address; updated 12 Feb 2015)
DPitt: Darryl Pitt, 225 West 83rd Street, New York, NY 10024, United States; Website (private address)

Catalogs:

References:

Published in Meteoritical Bulletin, no. 105, MAPS 52, 2411, September 2017. http://onlinelibrary.wiley.com/doi/10.1111/maps.12944/full

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Geography:

Mauritania

Mauritania

Coordinates:

Unknown.

Statistics:
This is 1 of 221 approved meteorites from Mauritania (plus 2 unapproved names) (plus 2 impact craters)

Also see:

This lists the most popular meteorites among people who looked up this meteorite.

Revision
history:

This lists important revisions made to data for this record.

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