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Northwest Africa 692
Basic information Name: Northwest Africa 692
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 692
Observed fall: No
Year found: 2000
Country: (Northwest Africa)
Mass:help 478 g
Classification
  history:
Meteoritical Bulletin:  MB 103  (2014)  H5
Recommended:  H5    [explanation]

This is 1 of 10803 approved meteorites (plus 19 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 4 Apr 2014
Writeuphelp
Writeup from MB 103:

Northwest Africa 692 (NWA 692)

(Northwest Africa)

Purchased: 2000

Classification: Ordinary chondrite (H5)

History: 1 stone weighing 478 g was purchased in Erfoud, Morocco, in 2000. Thomas Webb acquired the sample from Michael Cottingham in 2000.

Physical characteristics: Stone is brownish-orange in color and has an angular shape. The sample lacks fusion crust, but has shallow regmaglypts.

Petrography: Description and classification (Anthony Love, App): Sample displays recrystallized chondritic texture composed of distinct chondrules (avg. dia. 489 μm, n=62) and fragments in a recrystallized matrix.

Geochemistry: (A. Love, App) Olivine Fa18.1±0.2, n=16; low Ca pyroxene Fs16.9±0.1Wo1.5±0.7, n=12.

Classification: Ordinary Chondrite (H5 S3 W3)

Specimens: 23.94 g and 1 polished thin section are on deposit at App

Data from:
  MB103
  Table 0
  Line 0:
Place of purchase:Morocco
Date:P 2000
Mass (g):478
Pieces:1
Class:H5
Shock stage:S3
Weathering grade:W3
Fayalite (mol%):18.1±0.2
Ferrosilite (mol%):16.9±0.1
Wollastonite (mol%):1.5±0.7
Classifier:A. Love, App
Type spec mass (g):23.94
Type spec location:App
Main mass:TWebb
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)
TWebb: No contact information provided., United States (private address)
Catalogs:
References: Published in Meteoritical Bulletin, no. 103, MAPS 52, 1014, May 2017, http://onlinelibrary.wiley.com/doi/10.1111/maps.12888/full
Find references in NASA ADS:
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Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 8138 approved meteorites from (Northwest Africa) (plus 1941 unapproved names)

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