Meteoritical Bulletin: Entry for Northwest Africa 10296

header

MetSoc Home Publications Contacts

Search the Meteoritical Bulletin Database
Last update: 1 Oct 2023
Search for:	Search type:	Search limits:	Display:	Publication:
Names Text Places Classes Years	Contains Starts with Exact Sounds like	NonAntarctic Falls Non-NWAs Has strewnfield		What's new in the last:
Include past classifications in search		Has photo	Limit to approved meteorite names
Search text:

Northwest Africa 10296

Basic information

Name: Northwest Africa 10296
This is an OFFICIAL meteorite name.
Abbreviation: NWA 10296
Observed fall: No
Year found: 2015
Country: (Northwest Africa)
Mass: 566 g

Classification
history:

Meteoritical Bulletin:	MB 104	(2015)	L3.15
Recommended:			L3.15 [explanation]

This is 1 of 9 approved meteorites classified as L3.15. [show all]
Search for other: L chondrites, L chondrites (type 3), Ordinary chondrites, and Ordinary chondrites (type 3)

Comments:

Approved 3 Oct 2015

Writeup

help

Writeup from MB 104:

Northwest Africa 10296 (NWA 10296)

(Northwest Africa)

Purchased: 2015 Jan

Classification: Ordinary chondrite (L3.15)

History: Purchased by Marcin Cimała in Tantan, January 2015.

Physical characteristics: Single stone with weathered exterior. Saw cuts shows many densely packed chondrules set in dark-brown matrix.

Petrography: (C. Agee, UNM) Microprobe examination of a polished mount shows numerous porphyritic chondrules, most with mesostasis or glass. Abundant opaque matrix. Apparent mean chondrule diameter 594±227 μm, n=18.

Geochemistry: (C. Agee and N. Muttik, UNM) Chondrule olivine Fa_19.5±10.1, Cr₂O₃=0.19±0.17 (wt%), n=30; chondrule low-Ca pyroxene Fs_12.7±8.0Wo_0.5±0.4, n=12.

Classification: Ordinary chondrite (L3.15), subtype 3.15 based on mean values of Fa and Fs and 1-sigma standard deviation, and on the ferroan olivine mean value of Cr₂O₃ and 1-sigma standard deviation (Grossman and Brearley, 2005).

Specimens: 22.4 g including a probe mount on deposit at UNM, Marcin Cimała holds the main mass.

Bibliography:

Grossman J.N. and Brearley A.J. (2005) The onset of metamorphism in ordinary and carbonaceous chondrites. Meteorit. Planet. Sci. 40, 87-122. (link)

Data from:
  MB104
  Table 0
  Line 0:

Place of purchase:	Tantan
Date:	P 2015 Jan
Mass (g):	566
Pieces:	1
Class:	L3.15
Shock stage:	S3
Weathering grade:	W2
Fayalite (mol%):	19.5±10.1
Ferrosilite (mol%):	12.7±8.0
Wollastonite (mol%):	0.5±0.4
Classifier:	C. Agee, UNM
Type spec mass (g):	22.4
Type spec location:	UNM
Main mass:	Marcin Cimala
Comments:	Field name MC 130; 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)

Catalogs:

References:

Published in Meteoritical Bulletin, no. 104, MAPS 52, 2284, Octover 2017, http://onlinelibrary.wiley.com/doi/10.1111/maps.12930/full

Find references in NASA ADS:
Find references in Google Scholar:

Geography:

Coordinates:

Unknown.

Statistics:
This is 1 of 9368 approved meteorites from (Northwest Africa) (plus 1875 unapproved names)

Direct link to this page