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Northwest Africa 10635
Basic information Name: Northwest Africa 10635
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 10635
Observed fall: No
Year found: 2011
Country: (Northwest Africa)
Mass:help 30.3 g
Classification
  history:
Meteoritical Bulletin:  MB 105  (2016)  H5
Recommended:  H5    [explanation]

This is 1 of 11568 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 19 Apr 2016
Writeuphelp
Writeup from MB 105:

Northwest Africa 10635 (NWA 10635)

(Northwest Africa)

Purchased: 2011

Classification: Ordinary chondrite (H5)

History: 1 stone weighing 30.3 g was found in Morocco in 2011. David Holden acquired the sample from a meteorite prospector in Erfoud 2011.

Physical characteristics: The stone is dark brown, rectangular in shape and lacks fusion crust. The interior of the stone is light orangish-gray and shows chondrules, fragments and abundant (~8 vol%) fresh flakes of metal and FeS grains.

Petrography: Description and classification (A. Love, App): Sample displays recrystallized chondritic texture composed of distinct droplet chondrules and indistinct porphyritic chondrules which have an average diameter of 403 μm. Porphyritic chondrules have turbid to crystalline mesostasis.

Geochemistry: (A. Love, App) Olivine Fa20.1±0.2, N=6; low Ca pyroxene Fs18.6±0.2Wo2.2±0.3, N=6.

Classification: Ordinary chondrite (H5, S2, W1)

Specimens: An endcut and one slice weighing 6.5 g, and a polished thin section are currently on deposit at Appy. David Holden has the remaining mass.

Data from:
  MB105
  Table 0
  Line 0:
Place of purchase:Morocco
Date:P 2011
Mass (g):30.3
Pieces:1
Class:H5
Shock stage:S2
Weathering grade:W1
Fayalite (mol%):20.1±0.2 (N=6)
Ferrosilite (mol%):18.6±0.2 (N=6)
Wollastonite (mol%):2.2±0.3
Classifier:A. Love, App
Type spec mass (g):6.5
Type spec location:App
Main mass:David Holden
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. 105, MAPS 52, 2411, September 2017. http://onlinelibrary.wiley.com/doi/10.1111/maps.12944/full
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Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 9710 approved meteorites from (Northwest Africa) (plus 1853 unapproved names)
Also see:
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Revision
  history:
  This lists important revisions made to data for this record.

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