Meteoritical Bulletin: Entry for Northwest Africa 6033

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Northwest Africa 6033

Basic information

Name: Northwest Africa 6033
This is an OFFICIAL meteorite name.
Abbreviation: NWA 6033
Observed fall: No
Year found: 2009
Country: (Northwest Africa)
Mass: 3.1 g

Classification
history:

Recommended:

Achondrite-ung [explanation]

This is 1 of 118 approved meteorites classified as Achondrite-ung. [show all]
Search for other: Achondrites, Ungrouped achondrites

Comments:

Approved 17 Apr 2022

Writeup

help

Writeup from MB 111:

Northwest Africa 6033 (NWA 6033)

(Northwest Africa)

Purchased: 2009

Classification: Ungrouped achondrite

History: The meteorite was purchased from a Morrocan meteorite dealer on the mineral fair in St. Marie aux Mines, France.

Physical characteristics: Grayish rock mostly covered with fusion crust.

Petrography: The meteorite shows a microporphyritic texture composed of mostly 10 to 30 µm, rarely up to 400 µm sized subhedral to eudral olivine grains with interstitial mesostasis. Olivine typically shows compositional zoning with Mg-rich cores and more Fe-rich rims. Pyroxene is absent. Opaque phases are FeNi metal and FeS. Shock veins present.

Geochemistry: Olivine: Fa_14.4±3.3(Fa_9.3-21.4, FeO/MnO=70±9, n=15); mesostasis (wt%): SiO₂: 67.4±0.5, Al₂O₃: 12.2±0.2, Na₂O: 1.56±0.08, K₂O: 1.10±0.03, CaO: 9.2±0.3, MgO: 2.65±0.10, FeO: 5.3±0.3, TiO₂: 0.14±0.02, MnO: 0.13±0.03, Cr₂O₃: 0.43±0.09, N=8

Classification: Achondrite, ungrouped. This meteorite is a melt rock whose protolith, possibly an ordinary chondrite, cannot be determined.

Data from:
  MB111
  Table 0
  Line 0:

Place of purchase:	St. Marie aux Mines, France
Date:	P 2009
Mass (g):	3.1
Pieces:	1
Class:	Achondrite-ung
Shock stage:	S1
Weathering grade:	moderate
Fayalite (mol%):	14.4
Magnetic suscept.:	4.37
Classifier:	A. Greshake, MNB
Type spec mass (g):	0.8
Type spec location:	MNB
Main mass:	Hanno Strufe
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. 111, in preparation (2022)

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Geography:

Coordinates:

Unknown.

Statistics:
This is 1 of 8495 approved meteorites from (Northwest Africa) (plus 1899 unapproved names)

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