Meteoritical Bulletin: Entry for Northwest Africa 10109

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Northwest Africa 10109

Basic information

Name: Northwest Africa 10109
This is an OFFICIAL meteorite name.
Abbreviation: NWA 10109
Observed fall: No
Year found: 2014
Country: (Northwest Africa)
Mass: 250 g

Classification
history:

Meteoritical Bulletin:	MB 104	(2015)	LL3-6
Recommended:			LL3-6 [explanation]

This is 1 of 29 approved meteorites classified as LL3-6. [show all]
Search for other: LL chondrites, LL chondrites (type 3), Ordinary chondrites, and Ordinary chondrites (type 3)

Comments:

Approved 14 May 2015

Writeup

Writeup from MB 104:

Northwest Africa 10109 (NWA 10109)

(Northwest Africa)

Purchased: 2014

Classification: Ordinary chondrite (LL3-6)

History: Purchased by Tomasz Jakubowski from a local meteorite dealer Morocco.

Petrography: The meteorite is a chondritic breccia composed of LL3 to LL6 clasts set into a fine-grained clastic matrix. Plagioclase grain size in LL5 clasts is about 30 µm and in LL6 clasts about 80 μm.

Geochemistry: Olivine in type 6: Fa_29.4; olivine in type 3: Fa_23.3±6.5(Fa_9.1-33.2, n=53); pyroxene in type 6: Fs_23.8Wo_1.7; pyroxene in type 3: Fs_18.5±6.4Wo_1.1±0.9(Fs_4.9-33Wo_0.3-4.5, n=60).

Data from:
  MB104
  Table 0
  Line 0:

Place of purchase:	Morocco
Date:	P 2014
Mass (g):	250
Pieces:	1
Class:	LL3-6
Shock stage:	S2
Weathering grade:	W2
Fayalite (mol%):	29.4; 23.3±6.5 (9.1-33.2, n=53)
Ferrosilite (mol%):	23.8; 18.5±6.4 (4.9-33, n=60)
Wollastonite (mol%):	1.7; 1.1±0.9 (0.3-4.5, n=60)
Classifier:	A. Greshake, MNB
Type spec mass (g):	25.4
Type spec location:	MNB
Main mass:	Tomasz Jakubowski
Comments:	Submitted by Ansgar Greshake

Institutions
and collections

MNB: Museum für Naturkunde, Invalidenstraße 43, D-10115 Berlin, Germany (institutional address; updated 24 Dec 2011)

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 7655 approved meteorites from (Northwest Africa) (plus 1972 unapproved names)

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