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Northwest Africa 6309
Basic information Name: Northwest Africa 6309
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 6309
Observed fall: No
Year found: 2009
Country: (Northwest Africa)
Mass:help 950 g
Classification
  history:
Meteoritical Bulletin:  MB 102  (2013)  Eucrite-pmict
Recommended:  Eucrite-pmict    [explanation]

This is 1 of 425 approved meteorites classified as Eucrite-pmict.   [show all]
Search for other: Achondrites, Eucrites, and HED achondrites
Comments: Approved 10 Dec 2013
Writeuphelp
Writeup from MB 102:

Northwest Africa 6309 (NWA 6309)

(Northwest Africa)

Purchased: 2009

Classification: HED achondrite (Eucrite, polymict)

Petrography: (A. Greshake, MNB): The grayish-whitish speckled rock is dominated by a coarse-grained basaltic lithology composed of pyroxene and mostly lath-shaped calcic plagioclase. Pyroxenes are mostly exsolved and frequently show cloudy appearance. Rare clasts are dark melt clasts. Minor minerals include chromite and pyrrhotite.

Geochemistry: low-Ca pyroxene: Fs56.7-57.4Wo5.9-6.3; Ca-pyroxene Fs28-35.4Wo32.7-42.1; calcic plagioclase An90.1-91.8

Data from:
  MB102
  Table 0
  Line 0:
Place of purchase:Erfoud, Morocco
Date:P 2009
Mass (g):950
Pieces:1
Class:Eucrite-pmict
Shock stage:low
Weathering grade:moderate
Ferrosilite (mol%):56.7-57.4; 28-35.4
Wollastonite (mol%):5.9-6.3; 32.7-42.1
Classifier:A. Greshake, MNB
Type spec mass (g):25.6
Type spec location:MNB
Main mass:Marcin Cimala
Comments:MC073; 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. 102, MAPS 50, 1662, September 2015
Find references in NASA ADS:
Find references in Google Scholar:
Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 9921 approved meteorites from (Northwest Africa) (plus 1838 unapproved names)

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