Meteoritical Bulletin: Entry for Northwest Africa 3250

header

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 3250

Basic information

Name: Northwest Africa 3250
This is an OFFICIAL meteorite name.
Abbreviation: NWA 3250
Observed fall: No
Year found: 2006
Country: (Northwest Africa)
Mass: 916 g

Classification
history:

Meteoritical Bulletin:	MB 97	(2010)	Primitive achon, ungrouped
Recommended:			Achondrite-prim [explanation]

This is 1 of 16 approved meteorites classified as Achondrite-prim. [show all]
Search for other: Primitive achondrites

Comments:

Approved 3 Nov 2009

Writeup

help

Writeup from MB 97:

Northwest Africa 3250

Northwest Africa

Found: 2005

Classification: Primitive achondrite (ungrouped)

Physical characteristics: (E. Haiderer, Haiderer, and R. Bartoschewitz): One olive green stone of 916 g covered by about 20% of black fusion crust was found in 2005 and sold at a mineral show in Germany. Magnetic susceptibility log χ = 4.74 · 10⁹ m³⁄kg.

Petrography: (R. Bartoschewitz): Fine- to medium-grained unbrecciated rock (0.05–1 mm) with primarily protogranular texture composed of (in vol%) olivine (58%), low-Ca pyroxene (38%), and accessory plagioclase (1%), taenite (2%), troilite (1%), and chromite (<1%). Metal inclusions do not show any rust halos.

Geochemistry: (R. Bartoschewitz, P. Appel⁄B. Mader Kiel, E. Haiderer, J. Atard, La Valetta): Olivine Fa_37.4–38.1, Fe⁄Mn 87 (atomic); low-Ca pyroxenes Fs_29.6–30.6, Wo_3.2–2.8, Fe⁄Mn 56 (atomic); plagioclase An_46.4–49.4Or_1.1–1.5.Taenite Ni 17.6–21.2, Co 1.0–1.2; chromite TiO₂ 1.3–1.5, Al₂O₃ 13.3–13.5, MgO 3.0–3.4 (all wt%). O-isotopes (I. A. Franchi and R. C. Greenwood, OU): δ¹⁷O = -0.03, δ¹⁸O = 3.25, Δ¹⁷O = -1.72.

Classification: (R. Bartoschewitz and E. Haiderer): Primitive achondrite (ungrouped).

Specimens: A total of 20 g is on deposit at Kiel, Bart holds 9.7 g and one thin section, Haiderer holds the main mass.

Data from:
  MB97
  Table 1
  Line 104:

Place of purchase:	Germany
Date:	2006
Mass (g):	916
Pieces:	1
Class:	Primitive achon, ungrouped
Fayalite (mol%):	37.4-38.1
Ferrosilite (mol%):	29.6-30.6
Magnetic suscept.:	4.74
Classifier:	R. Bartoschewitz, P. Appel, B. Made, Kiel; O-isotopes: I. A. Franchi and R. C. Greenwood, OU
Type spec mass (g):	20.0
Type spec location:	Kiel
Main mass:	Haiderer

Plots:

O isotopes:

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)
OU: Planetary and Space Sciences Department of Physical Sciences The Open University Walton Hall Milton Keynes MK7 6AA United Kingdom, United Kingdom (institutional address; updated 8 Dec 2011)
Bart: Bartoschewitz Meteorite Laboratory, Weiland 37, D-38518 Gifhorn, Germany; Website (private address; updated 30 Nov 2019)
Haiderer: Erich Haiderer Laboratory, P.O. Box 88, A-1140 Vienna, Austria (private address; updated 7 Jan 2015)

Catalogs:

References:

Published in Meteoritical Bulletin, no. 97, MAPS 45, 449-493 (2010)

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

Geography:

Coordinates:

Unknown.

Statistics:
This is 1 of 9710 approved meteorites from (Northwest Africa) (plus 1853 unapproved names)

Crosslinks:

This lists all records that are linked to this record and to each other.

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