header
  MetSoc Home            Publications            Contacts  
Search the Meteoritical Bulletin Database
Last update: 18 Nov 2023
Search for: Search type: Search limits: Display: Publication:
Names
Text help
Places
Classes
Years
Contains
Starts with
Exact
Sounds like
NonAntarctic
Falls  Non-NWAs
What's new
  in the last:
Include past classifications in search
Limit to approved meteorite names
Search text:  
Northwest Africa 13046
Basic information Name: Northwest Africa 13046
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 13046
Observed fall: No
Year found: 2019
Country: (Northwest Africa)
Mass:help 22 g
Classification
  history:
Recommended:  EL4    [explanation]

This is 1 of 21 approved meteorites classified as EL4.   [show all]
Search for other: EL chondrites, Enstatite chondrites, Enstatite chondrites (type 4-7), and Enstatite-rich meteorites
Comments: Approved 21 Jan 2022
Writeuphelp
Writeup from MB 111:

Northwest Africa 13046 (NWA 13046)

(Northwest Africa)

Purchased: 2019

Classification: Enstatite chondrite (EL4)

History: In May 2019, at the mineral show in Chenzhou, Ziyao Wang discovered some small strange stones in the bottom of a box with ordinary chondrites from Northwest Africa, and donated some material to Rainer Bartoschewitz. Some of these stones are of meteoritic and others of terrestrial origin.

Physical characteristics: 22 g dark brown irregular stone with yellow-beige caliche

Petrography: (R. Bartoschewitz, Bart) well developed chondrules (0.1-0.9 mm, av. 0.3 mm) set in a brown stained matrix. Olivine mostly absent. Cracks are filled with Fe-oxihydrate and calcite.

Geochemistry: (R. Bartoschewitz, Bart, P. Appel and B. Mader, Kiel) Enstatite Fs0.7Wo0.5 (Fs0.0-2.2Wo0.3-0.8); n=16); feldspar An11Or3 (n=1). Troilite Ti=0.4, Cr=0.5 (n=3); daubreelite Mn=1.5 (n=8) wt%. Magnetic susceptibility (R. Bartoschewitz, Bart) log χ (× 10-9 m3/kg) = 4.86

Classification: Enstatite chondrite (ELa4). Classified as EL due to Mn > 1.4% in daubréelite and missing niningerite; subgroup a due to low Cr in troilite and abundant daubréelite.

Specimens: 4.7 g on deposit in Kiel, 13 g and polished thin section with Bart.


Writeup from MB 111:

Northwest Africa 13046 (NWA 13046)

(Northwest Africa)

Purchased: 2019

Classification: Enstatite chondrite (EL4)

History: In May 2019, at the mineral show in Chenzhou, Ziyao Wang discovered some small strange stones in the bottom of a box with ordinary chondrites from Northwest Africa, and donated some material to Rainer Bartoschewitz. Some of these stones are of meteoritic and others of terrestrial origin.

Physical characteristics: 22 g dark brown irregular stone with yellow-beige caliche

Petrography: (R. Bartoschewitz, Bart) well developed chondrules (0.1-0.9 mm, av. 0.3 mm) set in a brown stained matrix. Olivine mostly absent. Cracks are filled with Fe-oxihydrate and calcite.

Geochemistry: (R. Bartoschewitz, Bart, P. Appel and B. Mader, Kiel) Enstatite Fs0.7Wo0.5 (Fs0.0-2.2Wo0.3-0.8); n=16); feldspar An11Or3 (n=1). Troilite Ti=0.4, Cr=0.5 (n=3); daubreelite Mn=1.5 (n=8) wt%. Magnetic susceptibility (R. Bartoschewitz, Bart) log χ (× 10-9 m3/kg) = 4.86

Classification: Enstatite chondrite (ELa4). Classified as EL due to Mn > 1.4% in daubréelite and missing niningerite; subgroup a due to low Cr in troilite and abundant daubréelite.

Specimens: 4.7 g on deposit in Kiel, 13 g and polished thin section with Bart.

Data from:
  MB111
  Table 0
  Line 0:
Origin or pseudonym:desert
Place of purchase:Beijing, China
Date:P 2019
Mass (g):22
Pieces:1
Class:EL4
Weathering grade:high
Ferrosilite (mol%):0.7 (0.0-2.2; n=16)
Wollastonite (mol%):0.5±0.1
Magnetic suscept.:4.86
Classifier:R. Bartoschewitz
Type spec mass (g):4.7
Type spec location:Kiel
Main mass:R. Bartoschewitz
Finder:anonymous
Comments:working name WZD#G01; submitted by R. Bartoschewitz
Institutions
   and collections		 Kiel: Geologisches und Mineralogisches Museum, Institut für Geowissenschaften, Christian-Albrechts-Universität Kiel, Ludewig-Mayn-Str. 10, D-24118 Kiel, Germany, Germany (institutional address; updated 13 Sep 2013)
Bart: Bartoschewitz Meteorite Laboratory, Weiland 37, D-38518 Gifhorn, Germany; Website (private address; updated 30 Nov 2019)
Catalogs:
References: Published in Meteoritical Bulletin, no. 111, in preparation (2022)
Find references in NASA ADS:
Find references in Google Scholar:
Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 9429 approved meteorites from (Northwest Africa) (plus 1876 unapproved names)

Direct link to this page