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Northwest Africa 7964
Basic information Name: Northwest Africa 7964
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 7964
Observed fall: No
Year found: 2013
Country: (Northwest Africa)
Mass:help 350 g
Classification
  history:
Meteoritical Bulletin:  MB 102  (2013)  H5
Recommended:  H5    [explanation]

This is 1 of 11567 approved meteorites (plus 23 unapproved names) classified as H5.   [show all]
Search for other: H chondrites, H chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7)
Comments: Approved 31 Jul 2013
Writeuphelp
Writeup from MB 102:

Northwest Africa 7964 (NWA 7964)

(Northwest Africa)

Purchased: 2013

Classification: Ordinary chondrite (H5)

History: A single crusted stone weighing 350.4 g was purchased in Agadir in 2013 and acquired by Greg Catterton.

Physical characteristics: Dark brown shiny fusion crust fusion crust covers 100% of the angular stone.

Petrography: (A. Love, App) Sample dark brown and displays equilibrated texture composed of indistinct chondrules and fragments and metallic grains in a recrystallized matrix. Chondrules have an average diameter of 832 μm and display recrystallized mesostasis. Accessory minerals are apatite, feldspar (Avg. >5 μm, N=85).

Geochemistry: (A.Love, App) Fa17.9±0.2, N=15, Low-Ca pyroxene Fs16.1±0.3Wo1.3±0.2, N=12, An 39.14, n=1.

Classification: Ordinary Chondrite (H5, S3, W3)

Specimens: 22.58 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):350.4
Pieces:1
Class:H5
Shock stage:S3
Weathering grade:W3
Fayalite (mol%):17.9±0.2, N=15
Ferrosilite (mol%):16.4±0.3, N=12
Wollastonite (mol%):1.3±0.2
Classifier:A. Love, App
Type spec mass (g):22.58
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 9699 approved meteorites from (Northwest Africa) (plus 1854 unapproved names)
Also see:
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Revision
  history:
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