Meteoritical Bulletin: Entry for Northwest Africa 10295

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Northwest Africa 10295

Basic information

Name: Northwest Africa 10295
This is an OFFICIAL meteorite name.
Abbreviation: NWA 10295
Observed fall: No
Year found: 2015
Country: (Northwest Africa)
Mass: 600 g

Classification
history:

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

This is 1 of 861 approved meteorites (plus 2 unapproved names) classified as L3. [show all]
Search for other: L chondrites, L chondrites (type 3), Ordinary chondrites, and Ordinary chondrites (type 3)

Comments:

Approved 8 Sep 2015

Writeup

Writeup from MB 104:

Northwest Africa 10295 (NWA 10295)

(Northwest Africa)

Purchased: 2015 Jan

Classification: Ordinary chondrite (L3)

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

Physical characteristics: Single stone with weathered fusion crust. A 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. Apparent mean chondrule diameter 514±324 μm, n=28.

Geochemistry: (C. Agee and N. Muttik, UNM) Chondrule olivine Fa_22.1±11.1, Cr₂O₃=0.11±0.20 (wt%), n=12; chondrule low-Ca pyroxene Fs_16.6±5.8Wo_1.5±1.3, n=19.

Classification: Ordinary chondrite (L3), estimated subtype 3.5 based on mean values of Fa and Fs and 1-sigma standard deviation.

Specimens: 24.9 g including a probe mount on deposit at UNM, Marcin Cimała holds the main mass.

Data from:
  MB104
  Table 0
  Line 0:

Place of purchase:	Ouarzazate
Date:	P 2015 Jan
Mass (g):	600
Pieces:	1
Class:	L3
Shock stage:	S2
Weathering grade:	W1
Fayalite (mol%):	22.1±11.1
Ferrosilite (mol%):	16.6±5.8
Wollastonite (mol%):	1.5±1.3
Classifier:	C. Agee, UNM
Type spec mass (g):	24.9
Type spec location:	UNM
Main mass:	Marcin Cimala
Comments:	Field name MC 129; 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

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Geography:

Coordinates:

Unknown.

Statistics:
This is 1 of 9914 approved meteorites from (Northwest Africa) (plus 1841 unapproved names)

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