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Northwest Africa 10606
Basic information Name: Northwest Africa 10606
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 10606
Observed fall: No
Year found: 2009
Country: (Northwest Africa)
Mass:help 86.7 g
Meteoritical Bulletin:  MB 105  (2016)  H4
Recommended:  H4    [explanation]

This is 1 of 6388 approved meteorites (plus 2 unapproved names) classified as H4.   [show all]
Search for other: H chondrites, H chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7)
Comments: Approved 6 Apr 2016
Writeup from MB 105:

Northwest Africa 10606 (NWA 10606)

(Northwest Africa)

Purchased: 2009

Classification: Ordinary chondrite (H4)

History: 1 stone weighing 86.7 g was found in Morocco in 2009. David Holden acquired the sample from a meteorite prospector in Erfoud, 2009.

Physical characteristics: The stone is dark brown, rounded and is 90% covered by a weathered fusion crust. The interior of the stone is dark brown and shows chondrules, fragments and fresh and weathered flakes of metal and FeS grains.

Petrography: Description and classification (A. Love, App): Sample is transected by numerous FeOH-filled, bifurcating fractures and displays recrystallized chondritic texture. Chondrules are indistinct and have an average diameter of 547 μm. Porphyritic chondrules have crystalline mesostasis.

Geochemistry: (A. Love, App) Olivine Fa 18.4±0.6, N=9; Low Ca pyroxene Fs11.5±4.3Wo 1.2±0.9 (Fs6.5-19.1), N=8.

Classification: Based on textural relationships and equilibrated olivine compositions and unequilibrated pyroxene compositions, this is an H4, S3, W3 ordinary chondrite.

Specimens: An endcut and three slices weighing 17.9 g, and a polished thin section are currently on deposit at App. David Holden holds the Main mass.

Data from:
  Table 0
  Line 0:
Date:P 2009
Mass (g):86.7
Shock stage:S3
Weathering grade:W3
Fayalite (mol%):18.4±0.6 (N=9)
Ferrosilite (mol%):11.5±4.3 (N=8)
Wollastonite (mol%):1.2±0.9 (N=8)
Classifier:A. Love, App
Type spec mass (g):17.9
Type spec location:App
Main mass:David Holden
Comments:Submitted by Anthony Love
   and collections
App: Department of Geology, 572 Rivers St., Appalachian State University, Boone, NC 28608, United States (institutional address; updated 7 Mar 2013)
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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     This is 1 of 8745 approved meteorites from (Northwest Africa) (plus 1880 unapproved names)

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