Meteoritical Bulletin: Entry for Northwest Africa 7230

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Northwest Africa 7230

Basic information

Name: Northwest Africa 7230
This is an OFFICIAL meteorite name.
Abbreviation: NWA 7230
Observed fall: No
Year found: 2011
Country: (Northwest Africa)
Mass: 34 g

Classification
history:

Meteoritical Bulletin:	MB 102	(2013)	Diogenite
Recommended:			Diogenite [explanation]

This is 1 of 508 approved meteorites classified as Diogenite. [show all]
Search for other: Achondrites, Diogenites, and HED achondrites

Comments:

Approved 11 Dec 2013

Writeup

Writeup from MB 102:

Northwest Africa 7230 (NWA 7230)

(Northwest Africa)

Purchased: 2011

Classification: HED achondrite (Diogenite)

Petrography: The small individual is partly covered with fusion crust and shows a light-gray interior. The meteorite displays a cumulate texture of dominantly large low Ca pyroxene crystals, less abundant calcic plagioclase, and rare Ca-rich pyroxene. Accessory minerals include chromite and troilite.

Geochemistry: low Ca pyroxene Fs_24.9-25.4Wo_1.8-5.5, FeO/MnO=29-32; Ca-rich pyroxene: Fs_13.8-14.7Wo_43.7-44.9.FeO/MnO=22-27 ; plagioclase: An_86.5, range An_83.8-88.

Data from:
  MB102
  Table 0
  Line 0:

Place of purchase:	Erfoud, Morocco
Date:	P 2011
Mass (g):	34
Pieces:	1
Class:	diogenite
Shock stage:	moderate
Weathering grade:	low
Ferrosilite (mol%):	24.9-25.4
Wollastonite (mol%):	1.8-5.5
Classifier:	A. Greshake, MNB
Type spec mass (g):	7.0
Type spec location:	MNB
Main mass:	Stefan Ralew
Comments:	Submitted by Ansgar Greshake

Institutions
and collections

MNB: Museum für Naturkunde, Invalidenstraße 43, D-10115 Berlin, Germany (institutional address; updated 24 Dec 2011)
Ralew: Stefan Ralew, Kunibertstraße 29, 12524 Berlin, Germany; Website (private address)

Catalogs:

References:

Published in Meteoritical Bulletin, no. 102, MAPS 50, 1662, September 2015

Find references in NASA ADS:
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Photos:

Credit	Photos
Photos uploaded by members of the Encyclopedia of Meteorites. (Caution, these are of unknown reliability)
Gregor H.

Geography:

Coordinates:

Unknown.

Statistics:
This is 1 of 8904 approved meteorites from (Northwest Africa) (plus 1871 unapproved names)

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