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Northwest Africa 7963
Basic information Name: Northwest Africa 7963
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 7963
Observed fall: No
Year found: 2013
Country: (Northwest Africa)
Mass:help 458 g
Classification
  history:
Meteoritical Bulletin:  MB 102  (2013)  LL5
Recommended:  LL5    [explanation]

This is 1 of 3182 approved meteorites (plus 1 unapproved name) classified as LL5.   [show all]
Search for other: LL chondrites, LL chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7)
Comments: Approved 27 Jul 2013
Writeuphelp
Writeup from MB 102:

Northwest Africa 7963 (NWA 7963)

(Northwest Africa)

Purchased: 2013

Classification: Ordinary chondrite (LL5)

History: A single crusted stone weighing 457.7 g was found and purchased in Agadir in 2013. Greg Catterton acquired the sample from a meteorite prospector in 2013.

Physical characteristics: Dark brown fusion crust fusion crust covers -65% of the rounded ellipsoidal stone. A few shallow regmaglypts are visible on the crusted surface.

Petrography: (A. Love, App): Sample is light orange in color and displays a brecciated texture composed of >2mm-sized angular-subrounded clasts of recrystallized fine to medium-grained poikoblastic-textured chondritic rock set within a fragmental matrix. Sample contains indistinct chondrules, abundant plagioclase (>100 μm), apatite and slightly weathered, rounded to irregular-shaped grains of FeNi and FeS.

Geochemistry: (A.Love, App) Fa 31.4±1.1, N=13, Low Ca pyroxene Fs 25.0±1.0 Wo 2.0±0.2, N=12, An 39.14 n=1.

Classification: Ordinary Chondrite (LL,5 S3, W2)

Specimens: 50.77 g and 1 polished thin section are on deposit at App

Data from:
  MB102
  Table 0
  Line 0:
Place of purchase:Agadir
Date:P 2013
Mass (g):457.7
Pieces:1
Class:LL5
Shock stage:S3
Weathering grade:W2
Fayalite (mol%):31.4±1.1, N=13
Ferrosilite (mol%):25.0±1.0, N=12
Wollastonite (mol%):2.0±0.2
Classifier:A. Love, App
Type spec mass (g):50.77
Type spec location:App
Main mass:Greg Catterton
Finder:Anonymous
Comments:Submitted by Anthony Love
Institutions
   and collections
App: Department of Geology, 572 Rivers St., Appalachian State University, Boone, NC 28608, United States (institutional address; updated 7 Mar 2013)
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 8559 approved meteorites from (Northwest Africa) (plus 1896 unapproved names)

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