Meteoritical Bulletin: Entry for Northwest Africa 12834

MetSoc Home Publications Contacts

Search the Meteoritical Bulletin Database
Last update: 24 Apr 2024
Search for:	Search type:	Search limits:	Display:	Publication:
Names Text Places Classes Years	Contains Starts with Exact Sounds like	NonAntarctic Falls Non-NWAs Has strewnfield		What's new in the last:
Include past classifications in search		Has photo	Limit to approved meteorite names
Search text:

Northwest Africa 12834

Basic information

Name: Northwest Africa 12834
This is an OFFICIAL meteorite name.
Abbreviation: NWA 12834
Observed fall: No
Year found: 2019
Country: (Northwest Africa)
Mass: 440 g

Classification
history:

Meteoritical Bulletin:	MB 108	(2020)	H5
Recommended:			H5 [explanation]

This is 1 of 11568 approved meteorites (plus 23 unapproved names) classified as H5. [show all]
Search for other: H chondrites, H chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7)

Comments:

Approved 3 Aug 2019

Writeup

Writeup from MB 108:

Northwest Africa 12834 (NWA 12834)

(Northwest Africa)

Purchased: 2019 Feb

Classification: Ordinary chondrite (H5)

History: Purchased by Beat Booz in February 2019 from a Moroccan dealer.

Petrography: (A. Irving, UWS and P. Carpenter, WUSL) Moderately shocked breccia composed of closely packed clasts containing sparse, well-formed chondrules and relatively abundant stained metal. Silicates are noticeably shock darkened.

Geochemistry: Olivine (Fa_20.0±0.3(range Fa_19.7-20.3), N = 3), low-Ca pyroxene (Fs_17.1±0.2Wo_1.3±0.1(range Fs_16.9-17.3Wo_1.4-1.2), N = 3), high-Ca pyroxene (Fs_5.2Wo_47.0).

Classification: Ordinary chondrite (H5 breccia, shock-darkened).

Specimens: 21.0 g including one polished thin section at UWB; remainder with Mr. B. Booz.

Data from:
  MB108
  Table 0
  Line 0:

Place of purchase:	Morocco
Date:	P 2019 Feb
Mass (g):	440.1
Pieces:	4
Class:	H5
Shock stage:	S4
Weathering grade:	W2
Fayalite (mol%):	20.0±0.3
Ferrosilite (mol%):	17.1±0.2
Wollastonite (mol%):	1.3±0.1
Classifier:	A. Irving, UWS, and P. Carpenter, WUSL
Type spec mass (g):	21.0
Type spec location:	UWB
Main mass:	B. Booz
Comments:	Work name BB-84; submitted by A. Irving

Institutions
and collections

UWS: University of Washington, Department of Earth and Space Sciences, 70 Johnson Hall, Seattle, WA 98195, United States (institutional address; updated 15 Jan 2012)
WUSL: Washington Univ., One Brookings Drive, St. Louis, MO 63130, United States (institutional address; updated 17 Oct 2011)
UWB: University of Washington, Burke Museum of Natural History and Culture, Box 353010 Seattle, WA 98195, United States (institutional address; updated 9 Oct 2023)

Catalogs:

References:

Published in Meteoritical Bulletin, no. 108 (2020) Meteorit. Planet. Sci. 55, 1146-1150

Find references in NASA ADS:
Find references in Google Scholar:

Photos:

Credit	Photos
Photos uploaded by members of the Encyclopedia of Meteorites. (Caution, these are of unknown reliability)
Beat Booz

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.

Direct link to this page