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Northwest Africa 699
Basic information Name: Northwest Africa 699
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 699
Observed fall: No
Year found: 2000
Country: (Northwest Africa)
Mass:help 858 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 14 Feb 2014
Writeuphelp
Writeup from MB 103:

Northwest Africa 699 (NWA 699)

(Northwest Africa)

Purchased: 2000

Classification: Ordinary chondrite (H5)

History: 1 stone weighing 858 g was found in Morocco in 2000. Thomas Webb acquired the sample from Michael Cottingham in a meteorite prospector in 2000.

Physical characteristics: Stone has an orange patina and rounded to equant shape. The sample lacks fusion crust, but shows well developed regmaglypts.

Petrography: Description and classification (A. Love, App): Sample displays recrystallized chondritic texture composed of distinct 576 μm (mean diameter) chondrules and fragments in a recrystallized matrix. Sample contains minimally weathered Fe-Ni and FeS metal occurring as discrete grains.

Geochemistry: (A. Love, App) Olivine Fa18.3±0.5, n=12, low Ca pyroxene Fs17.0±0.4Wo0.7±0.2, n=12.

Classification: Ordinary Chondrite (H5 S3 W2)

Specimens: 29.08 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):858
Pieces:1
Class:H5
Shock stage:S3
Weathering grade:W2
Fayalite (mol%):18.3±0.5
Ferrosilite (mol%):17.0±0.4
Wollastonite (mol%):0.7±0.2
Classifier:A. Love, App
Type spec mass (g):29.08
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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