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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:help 397 g
Classification
  history:
Meteoritical Bulletin:  MB 105  (2016)  CK5
Recommended:  CK5    [explanation]

This is 1 of 162 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
Writeuphelp
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 Fa31.9±0.5, Fe/Mn=107±7, Cr2O3=0.01±0.01 wt%, NiO=0.38±0.04 wt%, n=21; low-Ca pyroxene Fs27.4±1.3Wo0.7±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
Coordinates:Unknown.

Statistics:
     This is 1 of 114 approved meteorites from Mauritania (plus 1 unapproved name) (plus 2 impact craters)

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