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Northwest Africa 8502
Basic information Name: Northwest Africa 8502
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 8502
Observed fall: No
Year found: 2013
Country: (Northwest Africa)
Mass:help 48 g
Classification
  history:
Meteoritical Bulletin:  MB 103  (2014)  Diogenite
Recommended:  Diogenite    [explanation]

This is 1 of 481 approved meteorites classified as Diogenite.   [show all]
Search for other: Achondrites, Diogenites, and HED achondrites
Comments: Approved 14 Sep 2014
Writeuphelp
Writeup from MB 103:

Northwest Africa 8502 (NWA 8502)

(Northwest Africa)

Purchased: 2013

Classification: HED achondrite (Diogenite)

Petrography: The fragment is partly covered by shiny fusion crust and displays a cumulate texture of dominantly large orthopyroxene crystals and less abundant calcic plagioclase. Minor phases include olivine, chromite and troilite.

Geochemistry: calcic plagioclase: An85.5±2.4 (An81.9-88.6, n=16)

Data from:
  MB103
  Table 0
  Line 0:
Place of purchase:Erfoud, Morocco
Date:P 2013
Mass (g):48
Pieces:1
Class:Diogenite
Shock stage:moderate
Weathering grade:low
Fayalite (mol%):24.6±0.2 (24.1-24.9, n=20)
Ferrosilite (mol%):20.7±0.6 (19.8-21.8, n=20)
Wollastonite (mol%):2.1±0.5 (1.6-3, n=20)
Classifier:A. Greshake, MNB
Type spec mass (g):10
Type spec location:MNB
Main mass:Harald Stehlik
Comments:Submitted by Ansgar Greshake
Institutions
   and collections
MNB: Museum für Naturkunde, Invalidenstraße 43, D-10115 Berlin, Germany (institutional address; updated 24 Dec 2011)
Stehlik: Harald Stehlik, 1220 Wien, Austria (private address)
Catalogs:
References: Published in Meteoritical Bulletin, no. 103, MAPS 52, 1014, May 2017, http://onlinelibrary.wiley.com/doi/10.1111/maps.12888/full
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Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 8037 approved meteorites from (Northwest Africa) (plus 1947 unapproved names)

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