Meteoritical Bulletin: Entry for Northwest Africa 5435

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Northwest Africa 5435

Basic information

Name: Northwest Africa 5435
This is an OFFICIAL meteorite name.
Abbreviation: NWA 5435
Observed fall: No
Year found: 2009
Country: Morocco
Mass: 444 g

Classification
history:

Meteoritical Bulletin:	MB 100	(2012)	Brachinite
Recommended:			Brachinite [explanation]

This is 1 of 62 approved meteorites classified as Brachinite. [show all]
Search for other: Brachinites, Primitive achondrites

Comments:

Approved 3 Mar 2012

Writeup

Writeup from MB 100:

Northwest Africa 5435 (NWA 5435)

Morocco

Found: 2009

Classification: Primitive achondrite (Brachinite)

Physical characteristics: Desert ablated. Little fusion crust.

Petrography: Medium grained, equigranular with moderately developed flow texture. Mineral modes (in vol. %): olivine, 90; diopside, 4; plagioclase, 3; FeS+metal+merrilite, 3.

Geochemistry: Olivine, Fa_32.7, Fe/Mn=77; diopside, Fs_10.5Wo_42.6; plagioclase, An₂₉Or_2.3

Classification: Achondrite (brachinite)

Data from:
  MB100
  Table 1
  Line 1246:

Place of purchase:	Erfoud
Date:	2009
Mass (g):	444
Pieces:	1
Class:	Brachinite
Shock stage:	S3
Weathering grade:	low
Fayalite (mol%):	32.7
Ferrosilite (mol%):	10.5
Wollastonite (mol%):	45.6
Classifier:	T. Bunch and J. Wittke, NAU
Type spec mass (g):	20.14
Type spec location:	PSF
Main mass:	F. Kuntz
Comments:	Submitted by Wittke

Institutions
and collections

PSF: Planetary Studies Foundation,10 Winterwood Lane, Unit B, Galena, Illinois 61036-9283, United States; Website (institutional address; updated 1 Dec 2011)
Kuntz: Fabien Kuntz, France; Website (private address)
NAU: Geology, Bldg 12 Knoles Dr Northern Arizona University, Flagstaff, AZ 86011, United States (institutional address; updated 12 Apr 2012)

Catalogs:

References:

Published in Meteoritical Bulletin, no. 100, MAPS 49, E1-E101 (2014)

Find references in NASA ADS:
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Geography:

Morocco

Coordinates:

Unknown.

Statistics:
This is 1 of 2163 approved meteorites from Morocco (plus 32 unapproved names) (plus 1 impact crater)

Synonyms

NWA 6435 (6435 abolished after meteorite approved as 5435)

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