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Northwest Africa 7206
Basic information Name: Northwest Africa 7206
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 7206
Observed fall: No
Year found: 2011
Country: Morocco
Mass:help 22 g
Classification
  history:
Meteoritical Bulletin:  MB 100  (2012)  Eucrite-pmict
Recommended:  Eucrite-pmict    [explanation]

This is 1 of 391 approved meteorites classified as Eucrite-pmict.   [show all]
Search for other: Achondrites, Eucrites, and HED achondrites
Comments: Approved 10 Apr 2012
Writeuphelp
Writeup from MB 100:

Northwest Africa 7206 (NWA 7206)

Morocco

Purchased: 2011 Jan

Classification: HED achondrite (Eucrite, polymict)

History: One stone was purchased by anonymous collector in Tucson, USA, in January 2011.

Physical characteristics: Irregularly shaped, 22 g, light to dark brown stone. The brecciated texture is visible on a surface. Lacks fusion crust.

Petrography: (C.A. Lorenz, Vernad) The meteorite is a melt-matrix breccia consisting of 40 vol% rounded mineral and lithic fragments (0.5 to 1 cm) embedded in a dark matrix. The lithic clasts are medium-grained pyroxene-plagioclase (eucritic) rocks of metaigneous origin, some with subophitic texture, consisting of pigeonite with lamellae of augite, minor augite with lamellae of pigeonite, silica and rare phosphate, chromite and ilmenite. Also contains fine-grained melt-breccia clasts. Matrix is a fine-grained aggregate of pyroxene and feldspar, with numerous small lithic and mineral clasts.

Geochemistry: (N.N. Kononkova, Vernad) Pyroxene En34-39Wo2-4, Fe/Mn=30, En28-31Wo40-42; feldspar is An88-90Ab10-12.

Classification: Eucrite (polymict)

Specimens: 7.48 g and one thin polished section are on deposit at Vernad. Anonymous collector holds the main mass.

Data from:
  MB100
  Table 1
  Line 1676:
Place of purchase:Tucson, USA
Date:P 2011 Jan
Mass (g):22
Pieces:1
Class:Eucrite-pmict
Classifier:C. A. Lorenz, Vernad
Type spec mass (g):7.48
Type spec location:Vernad
Main mass:anonymous
Comments:Submitted by C. A. Lorenz
Institutions
   and collections		 Vernad: Vernadsky Institute of Geochemistry and Analytical Chemistry, Russia (institutional address; updated 21 Feb 2016)
Catalogs:
References: Published in Meteoritical Bulletin, no. 100, MAPS 49, E1-E101 (2014)
Find references in NASA ADS:
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Geography:

Morocco
Coordinates:Unknown.

Statistics:
     This is 1 of 1932 approved meteorites from Morocco (plus 27 unapproved names) (plus 1 impact crater)

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