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Northwest Africa 10300
Basic information Name: Northwest Africa 10300
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 10300
Observed fall: No
Year found: 2013
Country: (Northwest Africa)
Mass:help 77.2 g
Classification
  history:
Meteoritical Bulletin:  MB 104  (2015)  Diogenite
Recommended:  Diogenite    [explanation]

This is 1 of 449 approved meteorites classified as Diogenite.   [show all]
Search for other: Achondrites, Diogenites, and HED achondrites
Comments: Approved 22 Oct 2015
Writeuphelp
Writeup from MB 104:

Northwest Africa 10300 (NWA 10300)

(Northwest Africa)

Purchased: 2013 Apr

Classification: HED achondrite (Diogenite)

History: Purchased by Darryl Pitt in April 2013 from a Moroccan dealer.

Petrography: (A. Irving and S. Kuehner, UWS) Matrix-poor breccia composed predominantly of turbid orthopyroxene (exhibiting undulose extinction) with subordinate olivine, chromite and anorthite. Glass with a composition intermediate between those of orthopyroxene and olivine occurs along grain boundaries.

Geochemistry: Orthopyroxene (Fs25.9-25.7Wo2.9-3.1, FeO/MnO = 28-31, N = 3), olivine (Fa33.0-33.5, FeO/MnO = 48-51, N = 2).

Classification: Diogenite (breccia, shock-melted).

Specimens: 15.5 g including one polished thin section at UWB; main mass with DPitt.

Data from:
  MB104
  Table 0
  Line 0:
Place of purchase:Morocco
Date:P 2013 Apr
Mass (g):77.2
Pieces:1
Class:Diogenite
Shock stage:high
Weathering grade:low
Fayalite (mol%):33.0-33.5
Ferrosilite (mol%):24.9-25.1
Wollastonite (mol%):2.9-3.1
Classifier:A. Irving and S. Kuehner, UWS
Type spec mass (g):15.5
Type spec location:UWB
Main mass:DPitt
Comments:DP 735; submitted by A. Irving
Institutions
   and collections		 UWS: University of Washington, Department of Earth and Space Sciences, 70 Johnson Hall, Seattle, WA 98195, United States (institutional address; updated 15 Jan 2012)
UWB: University of Washington, Box 353010 Seattle, WA 98195, United States (institutional address; updated 27 Jul 2012)
DPitt: Darryl Pitt, 225 West 83rd Street, New York, NY 10024, United States; Website (private address)
Catalogs:
References: Published in Meteoritical Bulletin, no. 104, MAPS 52, 2284, Octover 2017, http://onlinelibrary.wiley.com/doi/10.1111/maps.12930/full
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Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 7579 approved meteorites from (Northwest Africa) (plus 1969 unapproved names)

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