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Northwest Africa 2081
Basic information Name: Northwest Africa 2081
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 2081
Observed fall: No
Year found: 2003
Country: (Northwest Africa)
Mass:help 114 g
Classification
  history:
Meteoritical Bulletin:  MB 89  (2005)  Diogenite
MetBase:  v. 7.1  (2006)  Diogenite
Recommended:  Diogenite    [explanation]

This is 1 of 440 approved meteorites classified as Diogenite.   [show all]
Search for other: Achondrites, Diogenites, and HED achondrites
Writeuphelp
Writeup from MB online:

Northwest Africa 2081

Morocco

Found 2003

Achondrite (diogenite)

Two mostly complete stones (114 g) were purchased in Rissani, Morocco in 2003 October. Description and classification (T. Bunch and J. Wittke, NAU): monomict breccia composed of partially recrystallized orthopyroxene clasts set in a fine to medium grained matrix of crushed orthopyroxene. Mineral modes (vol%): orthopyroxene, 95; olivine, 4; chromite, 1; metal and sulfide, <1. Orthopyroxene commonly exhibits fine deformation lamellae that are parallel to the [001] zone axis. Orthopyroxene, Fs23.3Wo2.1; olivine, Fa6.9; chromite, Mg# = 22, Cr# = 86. Shock level, S2/3; very low weathering grade (no oxidation of metal and no staining). Specimens: 22.2 g plus one thin section, NAU; main mass, MFarmer.

Data from:
  MB89
  Table 7
  Line 80:
Place of purchase:Rissani
Date:Oct 2003
Mass (g):114
Pieces:2
Class:Dio
Weathering grade:W0
Fayalite (mol%):6.9
Ferrosilite (mol%):23.3
Type spec mass (g):22.2
Comments:mbr; Undefined note. NAU is Northern Arizona University, Flagstaff, AZ 86011, USA
Institutions
   and collections
NAU: Geology, Bldg 12 Knoles Dr Northern Arizona University, Flagstaff, AZ 86011, United States; Website (institutional address; updated 12 Apr 2012)
MFarmer: Michael Farmer, P.O. Box 86059, Tucson, AZ 85754-6059, United States; Website (private address)
Catalogs:
References: Published in Meteoritical Bulletin, no. 89, MAPS 40, A201-A263 (2005)
Find references in NASA ADS:
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Photos:
CreditPhotos
Photos from the Encyclopedia of Meteorites:
Mike Farmer      
Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 7308 approved meteorites from (Northwest Africa) (plus 1977 unapproved names)

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