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Northwest Africa 15834
Basic information Name: Northwest Africa 15834
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 15834
Observed fall: No
Year found: 2013
Country: (Northwest Africa)
Mass:help 96.1 g
Classification
  history:
Meteoritical Bulletin:  MB 112  (2023)  Eucrite
Recommended:  Eucrite    [explanation]

This is 1 of 605 approved meteorites (plus 1 unapproved name) classified as Eucrite.   [show all]
Search for other: Achondrites, Eucrites, and HED achondrites
Comments: Approved 7 May 2023
Writeuphelp
Writeup from MB 112:

Northwest Africa 15834 (NWA 15834)

(Northwest Africa)

Purchased: 2013

Classification: HED achondrite (Eucrite)

Physical characteristics: Two fragments weighing 76.3 and 19.8 g. Light interior and nearly intact and glassy fresh fusion crust showing flight orientation. Both fragments make up a single rock.

Petrography: Unbrecciated with subophitic texture. Minerals are exsolved pigeonite, calcic plagioclase, silica polymorphs, ilmenite, chromite, troilite and minor kamacite.

Geochemistry: low-Ca pyroxene Fs62.9±1.9Wo2.9±1.9, FeO/MnO=33.9±3.2 (n=29). Plagioclase An89.6±5.0Ab10.1±4.7Or0.3±0.3 (n=16), range An78.7-96.3. Ca pyroxene Fs29.3±0.9Wo39.1±6.4.

Classification: Achondrite (eucrite, unbrecciated)

Data from:
  MB112
  Table 0
  Line 0:
Place of purchase:Munich, Germany
Date:P 2013
Mass (g):96.1
Pieces:2
Class:Eucrite
Shock stage:S2
Weathering grade:W1
Ferrosilite (mol%):62.9±1.9 (n=29); 29.3±0.9 (n=6)
Wollastonite (mol%):2.9±1.9 (n=292); 39.1±6.4 (n=6)
Classifier:K.Klemm, M. Patzek
Type spec mass (g):19.8
Type spec location:IfP
Main mass:M. Jost
Finder:anonymous
Comments:working number SJS 2203; submitted by Klemm K.
Institutions
   and collections
IfP: Institut für Planetologie, Wilhelm-Klemm-Str. 10, 48149 Münster, Germany (institutional address; updated 23 Jan 2012)
SJS: Space Jewels Switzerland, 2555 Brügg, Switzerland (private address; updated 3 Jan 2010)
Catalogs:
References: Published in Meteoritical Bulletin, no. 112, in preparation (2023)
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Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 9776 approved meteorites from (Northwest Africa) (plus 1862 unapproved names)

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