header
  MetSoc Home            Publications            Contacts  
Search the Meteoritical Bulletin Database
Last update: 26 Mar 2024
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 15234
Basic information Name: Northwest Africa 15234
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 15234
Observed fall: No
Year found: 2022
Country: (Northwest Africa)
Mass:help 564 g
Classification
  history:
Meteoritical Bulletin:  MB 111  (2023)  Eucrite-melt breccia
Recommended:  Eucrite-melt breccia    [explanation]

This is 1 of 102 approved meteorites classified as Eucrite-melt breccia.   [show all]
Search for other: Achondrites, Eucrites, and HED achondrites
Comments: Approved 5 Sep 2022
Writeuphelp
Writeup from MB 111:

Northwest Africa 15234 (NWA 15234)

(Northwest Africa)

Purchased: August 2022

Classification: HED achondrite (Eucrite, melt breccia)

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

Physical characteristics: Grayish rock without fusion crust.

Petrography: Eucrite-melt breccia composed of up to 1.5 cm basaltic clasts and up to 0.3 mm sized mineral fragments in fine-grained and mostly recrystallized shock melted matrix. Main minerals are exsolved pyroxenes and calcic plagioclase. Mineral grains entrained in the melt matrix often show resorption textures. Minor phases include silica, chromite, ilmenite, and FeS. No metallic iron has been detected. Contains secondary calcite veins and barite.

Geochemistry: low-Ca pyroxene: Fs60.1±0.8Wo2.3±0.1 (Fs59.4-60.5Wo2.1-2.5, FeO/MnO=29-30, n=7); augite exsolution lamellae: Fs24.9±0.2Wo44.5±0.4 (Fs24.5-25.1Wo44.2-45.4, FeO/MnO=28-32, n=7); calcic plagioclase: An90.2±0.9 (An89.6-91.7, n=7)

Data from:
  MB111
  Table 0
  Line 0:
Place of purchase:Morocco
Date:P August 2022
Mass (g):564
Pieces:1
Class:Eucrite-melt breccia
Shock stage:high
Weathering grade:moderate
Ferrosilite (mol%):60.1; 24.9
Wollastonite (mol%):2.3; 44.5
Classifier:A. Greshake, MNB
Type spec mass (g):20
Type spec location:MNB
Main mass:Polandmet - Marcin Cimala
Comments:Submitted by Ansgar Greshake
Institutions
   and collections
MNB: Museum für Naturkunde, Invalidenstraße 43, D-10115 Berlin, Germany (institutional address; updated 24 Dec 2011)
Polandmet: targoniny 30 43445 Dziegielow Poland, Poland; Website (institutional address; updated 7 May 2021)
Catalogs:
References: Published in Gattacceca J., McCubbin F. M., Grossman J. N., Schrader D. L., Chabot N. L., D’Orazio M., Goodrich C., Greshake A., Gross J., Joy K. H., Komatsu M. and Miao B. (2023) The Meteoritical Bulletin, No. 111. Meteoritics & Planetary Science 58, 901–904. ?
Find references in NASA ADS:
Find references in Google Scholar:
Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 9627 approved meteorites from (Northwest Africa) (plus 1865 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