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Northwest Africa 10453
Basic information Name: Northwest Africa 10453
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 10453
Observed fall: No
Year found: 2002
Country: (Northwest Africa)
Mass:help 19 g
Meteoritical Bulletin:  MB 104  (2015)  H6
Recommended:  H6    [explanation]

This is 1 of 6879 approved meteorites (plus 6 unapproved names) classified as H6.   [show all]
Search for other: H chondrites, H chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7)
Comments: Approved 15 Dec 2015
Writeup from MB 104:

Northwest Africa 10453 (NWA 10453)

(Northwest Africa)

Purchased: Feb 2002

Classification: Ordinary chondrite (H6)

History: Donated to Cascadia on May 24, 2002 by Edwin Thompson, who obtained the meteorite in February 2002 at the Tucson Gem and Mineral Show from a Moroccan trader.

Physical characteristics: Fusion crust with hairline fractures or partly removed by abrasion covers the hand specimen.

Petrography: Granoblastic textured specimen with ~10% metal showing poorly defined chondrules.

Geochemistry: (K. Farley and A. Ruzicka, Cascadia) Olivine (Fa19.1±0.4, N=14), low-Ca pyroxene (Fs17.0±0.4Wo2.2±0.4En80.8±0.7, N=13), plagioclase (Ab82.6±0.7Or3.6±0.6An13.7± .6, N=6).

Classification: H6 chondrite based on mineral chemistry, texture and metal content.

Specimens: Cascadia holds 14.0 g in three pieces, in addition to one polished thin section.

Data from:
  Table 0
  Line 0:
Place of purchase:Tucson
Date:P Feb 2002
Mass (g):19
Shock stage:S4
Weathering grade:W2
Fayalite (mol%):19.1±0.4
Ferrosilite (mol%):17.0±0.4
Wollastonite (mol%):2.2±0.4
Classifier:K. Farley and A. Ruzicka, Cascadia
Type spec mass (g):14.0
Type spec location:Cascadia
Main mass:Cascadia
Comments:Lab number CML0007; submitted by A. Ruzicka
   and collections
Cascadia: Cascadia Meteorite Laboratory, Portland State University, Department of Geology, Room 17 Cramer Hall, 1721 SW Broadway, Portland, OR 97201, United States; Website (institutional address; updated 28 Oct 2011)
Thompson: Edwin Thompson, 5150 Dawn St., Lake Oswego, OR 97035, United States (private address)
References: Published in Meteoritical Bulletin, no. 104, MAPS 52, 2284, Octover 2017, http://onlinelibrary.wiley.com/doi/10.1111/maps.12930/full
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     This is 1 of 9765 approved meteorites from (Northwest Africa) (plus 1865 unapproved names)

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