header
  MetSoc Home            Publications            Contacts  
Search the Meteoritical Bulletin Database
Last update: 21 Jun 2021
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:
Limit to approved meteorite names
Search text:  
Northwest Africa 13873
Basic information Name: Northwest Africa 13873
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 13873
Observed fall: No
Year found: 2021
Country: (Northwest Africa)
Mass:help 166 g
Classification
  history:
Recommended:  Eucrite    [explanation]

This is 1 of 502 approved meteorites (plus 1 unapproved name) classified as Eucrite.   [show all]
Search for other: Achondrites, Eucrites, and HED achondrites
Comments: Approved 28 Mar 2021
Writeuphelp
Writeup from MB 110:

Northwest Africa 13873 (NWA 13873)

(Northwest Africa)

Purchased: 2021

Classification: HED achondrite (Eucrite)

History: The meteorite was purchased from a dealer in Morocco.

Physical characteristics: Grayish rock partly covered with fusion crust.

Petrography: The meteorite is a fragmental breccia composed of up to 3 mm sized basaltic and up to 1 cm sized black melt rock clasts set into a clastic matrix. Mineral phases are predominantly up to 600 µm sized exsolved pyroxene and calcic plagioclase grains. Minor phases include silica polymorph, chromite, ilmenite, troilite, and metallic iron.

Geochemistry: low-Ca pyroxene: Fs55.6±0.2Wo3.7±0.1 (Fs55.4-55.9Wo3.5-3.9, FeO/MnO=32-34, n=7); Ca-pyroxene: Fs28.6±0.8Wo40.6±1.4 (Fs27.8-30.3Wo37.3-41.4, FeO/MnO=27-32, n=7); calcic plagioclase: An90.2±1.0 (An88.5-91.6, n=9)

Data from:
  MB110
  Table 0
  Line 0:
Place of purchase:Morocco
Date:P 2021
Mass (g):166
Pieces:1
Class:Eucrite
Shock stage:low
Weathering grade:low
Ferrosilite (mol%):55.6; 28.6
Wollastonite (mol%):3.7; 40.6
Classifier:A. Greshake, MNB
Type spec mass (g):23.7
Type spec location:MNB
Main mass:Philippe Schmitt-Kopplin
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. 110, in preparation (2021)
Find references in NASA ADS:
Find references in Google Scholar:
Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 7752 approved meteorites from (Northwest Africa) (plus 1971 unapproved names)

Direct link to this page