Meteoritical Bulletin: Entry for Northwest Africa 8336

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Northwest Africa 8336

Basic information

Name: Northwest Africa 8336
This is an OFFICIAL meteorite name.
Abbreviation: NWA 8336
Observed fall: No
Year found: 2014
Country: (Northwest Africa)
Mass: 2.13 kg

Classification
history:

Meteoritical Bulletin:	MB 103	(2014)	Eucrite-mmict
Recommended:			Eucrite-mmict [explanation]

This is 1 of 281 approved meteorites classified as Eucrite-mmict. [show all]
Search for other: Achondrites, Eucrites, and HED achondrites

Comments:

Approved 23 Apr 2014

Writeup

Writeup from MB 103:

Northwest Africa 8336 (NWA 8336)

(Northwest Africa)

Purchased: 2014 Feb

Classification: HED achondrite (Eucrite, monomict)

Petrography: (K. Metzler, IfP) Coarse-grained breccia consisting of gabbroic eucrite clasts and subrounded melt-rock clasts, embedded in a fine-grained clastic matrix of mainly pyroxene and plagioclase fragments. Pyroxene in eucrite clasts and clastic matrix with strong recrystallization textures and relict augite exsolution lamellae. Plagioclase shows strong undulatory extinction. Localized melt pockets with vesicles and fluidal texture of plagioclase grains. Accessory minerals are a silica polymorph, chromite, ilmenite, and very minor metallic iron.

Geochemistry: Pigeonite host: Fs_59.3±3Wo_4.9±3(n=9); Augite lamellae, Fs_27.2±2Wo_42.8±1.7(n=7). Plagioclase compositions, An_92.5±2(An_89-95, n=13).

Classification: Strongly shocked eucrite, containing gabbroic eucrite clasts and melt rock clasts.

Data from:
  MB103
  Table 0
  Line 0:

Place of purchase:	Morocco
Date:	P 2014 Feb
Mass (g):	2130
Pieces:	1
Class:	Eucrite-mmict
Shock stage:	high
Weathering grade:	low
Ferrosilite (mol%):	59.3±3 (54-65; n=9); 27.2±2 (24-30; n=7)
Wollastonite (mol%):	4.9±3 (2-9; n=9); 42.8±1.7 (40-45; n=7)
Classifier:	K. Metzler, IfP
Type spec mass (g):	20
Type spec location:	IfP
Main mass:	Mirko Graul, Bernau, Germany
Comments:	Submitted by K. Metzler

Institutions
and collections

IfP: Institut für Planetologie, Wilhelm-Klemm-Str. 10, 48149 Münster, Germany (institutional address; updated 23 Jan 2012)

Catalogs:

References:

Published in Meteoritical Bulletin, no. 103, MAPS 52, 1014, May 2017, http://onlinelibrary.wiley.com/doi/10.1111/maps.12888/full

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Photos:

Credit	Photos
Photos uploaded by members of the Encyclopedia of Meteorites. (Caution, these are of unknown reliability)
chen wang
Franco Vignato
Ziyao Wang

Geography:

Coordinates:

Unknown.

Statistics:
This is 1 of 9710 approved meteorites from (Northwest Africa) (plus 1853 unapproved names)

Also see:

This lists the most popular meteorites among people who looked up this meteorite.

Revision
history:

This lists important revisions made to data for this record.

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