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Northwest Africa 10298
Basic information Name: Northwest Africa 10298
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 10298
Observed fall: No
Year found: 2015
Country: (Northwest Africa)
Mass:help 609 g
Classification
  history:
Meteoritical Bulletin:  MB 104  (2015)  L3.2
Recommended:  L3.2    [explanation]

This is 1 of 17 approved meteorites classified as L3.2.   [show all]
Search for other: L chondrites, L chondrites (type 3), Ordinary chondrites, and Ordinary chondrites (type 3)
Comments: Approved 3 Oct 2015
Writeuphelp
Writeup from MB 104:

Northwest Africa 10298 (NWA 10298)

(Northwest Africa)

Purchased: 2015 Jan

Classification: Ordinary chondrite (L3.2)

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

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

Petrography: (C. Agee, UNM) Microprobe examination of a polished mount shows numerous porphyritic chondrules, most with mesostasis or glass. Adundant opaque matrix. Apparent mean chondrule diameter 731±394 μm, n=29.

Geochemistry: (C. Agee and N. Muttik, UNM) Ferroan chondrule olivine Fa26.3±13.6, Fe/Mn=71±37, Cr2O3=0.13±0.07 (wt%), n=30; chondrule low-Ca pyroxene Fs10.1±7.3Wo0.6±0.4, n=12.

Classification: Ordinary chondrite (L3.2), type 3.2 based on mean value of Cr2O3 in ferroan chondrule olivine and the 1-sigma standard deviation, similar to Kyrmka L3.2 (Grossman and Brearley, 2005).

Specimens: 22.5 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:Ouarzazate
Date:P 2015 Jan
Mass (g):609
Pieces:1
Class:L3.2
Shock stage:S2
Weathering grade:W2
Fayalite (mol%):26.3±13.6
Ferrosilite (mol%):10.1±7.3
Wollastonite (mol%):0.6±0.4
Classifier:C. Agee, UNM
Type spec mass (g):22.5
Type spec location:UNM
Main mass:Marcin Cimala
Comments:Field name MC 132; 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 7385 approved meteorites from (Northwest Africa) (plus 1955 unapproved names)

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